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S’mores Cookie Bars Irresistible and Easy Recipe

by on March 3, 2025

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Are you ready to indulge in a treat that combines gooey marshmallows, rich chocolate, and buttery cookies? In this post, I’ll share my easy and irresistible S’mores Cookie Bars recipe. With simple ingredients, step-by-step instructions, and tips for perfect results, you can whip up these delightful bars in no time. Let’s dive into this sweet adventure together and make your kitchen the place for delicious memories!

To make S’mores cookie bars, gather these items: - 1 cup unsalted butter, softened - 1 cup packed brown sugar - ½ cup granulated sugar - 2 large eggs, at room temperature - 1 teaspoon pure vanilla extract - 2 ¼ cups all-purpose flour - 1 teaspoon baking soda - ½ teaspoon salt - 1 cup semisweet chocolate chips - 1 cup mini marshmallows - 1 cup graham cracker crumbs These ingredients create a rich, gooey treat that will impress everyone. You can swap some ingredients based on your needs: - Use coconut oil instead of butter for a dairy-free option. - Swap brown sugar for coconut sugar for a lighter flavor. - Use egg substitutes like applesauce or flaxseed meal for a vegan version. - If you want a different taste, try white chocolate chips instead of semisweet. These substitutions keep the essence of S’mores alive while catering to different diets. To prepare these cookie bars, you will need: - A 9x13 inch baking pan - Parchment paper (optional, for easy removal) - Large mixing bowl - Electric mixer or whisk - Measuring cups and spoons - Rubber spatula - Wire rack for cooling Having the right tools makes the process smooth and enjoyable, ensuring delicious results. {{ingredient_image_2}} First, you need to preheat your oven to 350°F (175°C). This step warms the oven for even baking. Next, grab a 9x13 inch baking pan. You can grease it or line it with parchment paper. Lining helps with easy removal later. In a large bowl, add 1 cup of softened unsalted butter. Next, add 1 cup of packed brown sugar and ½ cup of granulated sugar. Use an electric mixer to blend them together. Aim for a light and fluffy mix. This should take about 2-3 minutes. Now, it’s time to add the eggs. Include 2 large eggs, one at a time. Mix well after each addition. Then, pour in 1 teaspoon of pure vanilla extract. Make sure it is combined well with the butter and sugar mixture. In another bowl, whisk together the dry ingredients. You will need 2 ¼ cups of all-purpose flour, 1 teaspoon of baking soda, and ½ teaspoon of salt. Mix these until they are well combined. Gradually add this dry mix to the wet ingredients. Stir until there are no visible flour streaks left. Gently fold in 1 cup of semisweet chocolate chips and 1 cup of graham cracker crumbs. Make sure they are evenly distributed in the dough. Now, pour half of the cookie dough into your baking pan. Press it down evenly to create a base layer. Next, sprinkle 1 cup of mini marshmallows over the first layer. After that, add the remaining cookie dough on top. Spread it gently to cover the marshmallows. Place the pan in the preheated oven. Bake for 25-30 minutes. You want the edges to be golden brown. A toothpick inserted in the center should come out with a few moist crumbs. Once baked, let the bars cool in the pan for at least 15 minutes. Then, transfer them to a wire rack to cool completely. Finally, cut into squares and serve! To get the best texture in your S’mores cookie bars, use softened butter. This helps create a light and fluffy dough. Make sure your eggs are at room temperature. This also helps the dough mix well. When you add the dry ingredients, mix just until no flour streaks remain. Overmixing can lead to tough bars. For a richer taste, consider adding a touch of sea salt on top before baking. This will enhance the chocolate flavor. You can also use different types of chocolate chips, like dark or milk chocolate. This will create new flavor profiles. For a fun twist, try adding a bit of peanut butter to the dough. It pairs nicely with the chocolate and marshmallows. If your bars are too dry, check your measurements. Too much flour can lead to dry bars. If they come out too gooey, they might need more baking time. Keep an eye on them in the oven. If the edges brown too fast, cover the pan with foil. This will help the center bake without overcooking the outside. Pro Tips Chill the Dough: For a thicker cookie bar, chill the dough in the refrigerator for 30 minutes before baking. This helps prevent spreading and enhances the texture. Use Fresh Ingredients: Ensure your baking soda and chocolate chips are fresh for the best flavor and texture. Stale ingredients can affect the outcome of your cookie bars. Don’t Overbake: Keep an eye on the baking time and remove the bars when the edges are golden brown. Overbaking can lead to dry cookie bars. Customize Toppings: Feel free to add other mix-ins like peanut butter chips, nuts, or even a sprinkle of sea salt on top for an extra flavor boost! {{image_4}} To make gluten-free S’mores cookie bars, swap out the all-purpose flour. Use a gluten-free flour blend instead. Many blends work great in baking. Look for one that includes xanthan gum. This will help with texture. Your bars will still be soft and delicious. Ensure all other ingredients are gluten-free too. You can switch the chocolate chips for different types. Try dark chocolate chips for a richer taste. Milk chocolate gives a sweeter flavor. White chocolate can add a fun twist. You can even mix them together. Each type brings its own unique flavor to the bars. Feel free to get creative with add-ins! You can add nuts like walnuts or pecans for crunch. Try using peanut butter chips for a nutty flavor. You might even mix in some toffee bits for extra sweetness. Just remember to keep the balance of flavors in mind. Adding these options can make your bars even more special. To keep your S’mores Cookie Bars fresh, store them in an airtight container. Place a piece of parchment paper between layers to avoid sticking. They stay best at room temperature for up to five days. If you want them to last longer, consider refrigeration. These cookie bars freeze well! First, let them cool completely. Then, wrap them tightly in plastic wrap. Place them in a freezer-safe bag or container. They can stay frozen for up to three months. When ready to enjoy, just thaw them in the fridge overnight. To reheat S’mores Cookie Bars, use an oven set to 350°F (175°C). Place the bars on a baking sheet and warm them for about 10 minutes. You can also microwave individual squares for 15-20 seconds. This brings back the gooey goodness of the marshmallows! S’mores cookie bars last about 5 to 7 days when stored correctly. Keep them in an airtight container at room temperature. This keeps them soft and chewy. If you want to keep them longer, you can freeze them for up to three months. Just wrap them well in plastic wrap and place them in a freezer-safe bag. Yes, you can make these bars ahead of time. They are perfect for meal prep or gatherings. Bake and cool the bars, then store them in an airtight container. You can also freeze the dough before baking. Just thaw it in the fridge overnight before baking. If you don’t have marshmallows, try using marshmallow fluff. You can also use chocolate-covered marshmallows for a twist. For a different texture, mini meringues can work as a fun alternative. They won’t melt like marshmallows but will still add a nice crunch. Absolutely! Adding nuts can give these bars a nice crunch. Chopped walnuts or pecans pair well with the chocolate and graham crackers. Just fold them in with the chocolate chips and graham cracker crumbs. Aim for about ½ cup of nuts for a great balance. This article covered all you need for S’mores cookie bars. We looked at ingredients, step-by-step instructions, and tips for the best results. You can substitute items based on what you have at home. Remember to store, freeze, or reheat your bars correctly. With the right tools and a few tricks, you can make these treats perfectly every time. Enjoy experimenting with the variations and don’t hesitate to try something new! Happy baking!

Why I Love This Recipe

  1. Decadent Flavor: These S’mores Cookie Bars combine the rich taste of chocolate, the sweetness of marshmallows, and the crunch of graham crackers for an irresistible treat.
  2. Easy to Make: With straightforward steps, this recipe is perfect for bakers of all skill levels, making it a fun activity for family and friends.
  3. Perfect for Sharing: Cuts into squares, making it easy to serve at parties, picnics, or any gathering where you want to impress your guests.
  4. Customizable: Feel free to add your favorite mix-ins or toppings to make these bars uniquely yours, such as nuts or different types of chocolate.

Ingredients

Complete Ingredient List

To make S’mores cookie bars, gather these items:

– 1 cup unsalted butter, softened

– 1 cup packed brown sugar

– ½ cup granulated sugar

– 2 large eggs, at room temperature

– 1 teaspoon pure vanilla extract

– 2 ¼ cups all-purpose flour

– 1 teaspoon baking soda

– ½ teaspoon salt

– 1 cup semisweet chocolate chips

– 1 cup mini marshmallows

– 1 cup graham cracker crumbs

These ingredients create a rich, gooey treat that will impress everyone.

Ingredient Substitutions

You can swap some ingredients based on your needs:

– Use coconut oil instead of butter for a dairy-free option.

– Swap brown sugar for coconut sugar for a lighter flavor.

– Use egg substitutes like applesauce or flaxseed meal for a vegan version.

– If you want a different taste, try white chocolate chips instead of semisweet.

These substitutions keep the essence of S’mores alive while catering to different diets.

Equipment Needed

To prepare these cookie bars, you will need:

– A 9×13 inch baking pan

– Parchment paper (optional, for easy removal)

– Large mixing bowl

– Electric mixer or whisk

– Measuring cups and spoons

– Rubber spatula

– Wire rack for cooling

Having the right tools makes the process smooth and enjoyable, ensuring delicious results.

Step-by-Step Instructions

Prepping the Oven and Pan

First, you need to preheat your oven to 350°F (175°C). This step warms the oven for even baking. Next, grab a 9×13 inch baking pan. You can grease it or line it with parchment paper. Lining helps with easy removal later.

Creaming the Butter and Sugars

In a large bowl, add 1 cup of softened unsalted butter. Next, add 1 cup of packed brown sugar and ½ cup of granulated sugar. Use an electric mixer to blend them together. Aim for a light and fluffy mix. This should take about 2-3 minutes.

Mixing in Wet Ingredients

Now, it’s time to add the eggs. Include 2 large eggs, one at a time. Mix well after each addition. Then, pour in 1 teaspoon of pure vanilla extract. Make sure it is combined well with the butter and sugar mixture.

Combining Dry Ingredients

In another bowl, whisk together the dry ingredients. You will need 2 ¼ cups of all-purpose flour, 1 teaspoon of baking soda, and ½ teaspoon of salt. Mix these until they are well combined. Gradually add this dry mix to the wet ingredients. Stir until there are no visible flour streaks left.

Assembling the Cookie Bars

Gently fold in 1 cup of semisweet chocolate chips and 1 cup of graham cracker crumbs. Make sure they are evenly distributed in the dough. Now, pour half of the cookie dough into your baking pan. Press it down evenly to create a base layer.

Next, sprinkle 1 cup of mini marshmallows over the first layer. After that, add the remaining cookie dough on top. Spread it gently to cover the marshmallows.

Baking and Cooling Instructions

Place the pan in the preheated oven. Bake for 25-30 minutes. You want the edges to be golden brown. A toothpick inserted in the center should come out with a few moist crumbs. Once baked, let the bars cool in the pan for at least 15 minutes. Then, transfer them to a wire rack to cool completely. Finally, cut into squares and serve!

Tips & Tricks

Ensuring Perfect Texture

To get the best texture in your S’mores cookie bars, use softened butter. This helps create a light and fluffy dough. Make sure your eggs are at room temperature. This also helps the dough mix well. When you add the dry ingredients, mix just until no flour streaks remain. Overmixing can lead to tough bars.

Flavor Enhancements

For a richer taste, consider adding a touch of sea salt on top before baking. This will enhance the chocolate flavor. You can also use different types of chocolate chips, like dark or milk chocolate. This will create new flavor profiles. For a fun twist, try adding a bit of peanut butter to the dough. It pairs nicely with the chocolate and marshmallows.

Troubleshooting Common Issues

If your bars are too dry, check your measurements. Too much flour can lead to dry bars. If they come out too gooey, they might need more baking time. Keep an eye on them in the oven. If the edges brown too fast, cover the pan with foil. This will help the center bake without overcooking the outside.

Pro Tips

  1. Chill the Dough: For a thicker cookie bar, chill the dough in the refrigerator for 30 minutes before baking. This helps prevent spreading and enhances the texture.
  2. Use Fresh Ingredients: Ensure your baking soda and chocolate chips are fresh for the best flavor and texture. Stale ingredients can affect the outcome of your cookie bars.
  3. Don’t Overbake: Keep an eye on the baking time and remove the bars when the edges are golden brown. Overbaking can lead to dry cookie bars.
  4. Customize Toppings: Feel free to add other mix-ins like peanut butter chips, nuts, or even a sprinkle of sea salt on top for an extra flavor boost!

Variations

Gluten-Free S’mores Cookie Bars

To make gluten-free S’mores cookie bars, swap out the all-purpose flour. Use a gluten-free flour blend instead. Many blends work great in baking. Look for one that includes xanthan gum. This will help with texture. Your bars will still be soft and delicious. Ensure all other ingredients are gluten-free too.

Different Chocolate Options

You can switch the chocolate chips for different types. Try dark chocolate chips for a richer taste. Milk chocolate gives a sweeter flavor. White chocolate can add a fun twist. You can even mix them together. Each type brings its own unique flavor to the bars.

Unique Add-Ins

Feel free to get creative with add-ins! You can add nuts like walnuts or pecans for crunch. Try using peanut butter chips for a nutty flavor. You might even mix in some toffee bits for extra sweetness. Just remember to keep the balance of flavors in mind. Adding these options can make your bars even more special.

Storage Info

How to Store S’mores Cookie Bars

To keep your S’mores Cookie Bars fresh, store them in an airtight container. Place a piece of parchment paper between layers to avoid sticking. They stay best at room temperature for up to five days. If you want them to last longer, consider refrigeration.

Freezing Instructions

These cookie bars freeze well! First, let them cool completely. Then, wrap them tightly in plastic wrap. Place them in a freezer-safe bag or container. They can stay frozen for up to three months. When ready to enjoy, just thaw them in the fridge overnight.

Reheating Tips

To reheat S’mores Cookie Bars, use an oven set to 350°F (175°C). Place the bars on a baking sheet and warm them for about 10 minutes. You can also microwave individual squares for 15-20 seconds. This brings back the gooey goodness of the marshmallows!

FAQs

How long do S’mores Cookie Bars last?

S’mores cookie bars last about 5 to 7 days when stored correctly. Keep them in an airtight container at room temperature. This keeps them soft and chewy. If you want to keep them longer, you can freeze them for up to three months. Just wrap them well in plastic wrap and place them in a freezer-safe bag.

Can I make these bars ahead of time?

Yes, you can make these bars ahead of time. They are perfect for meal prep or gatherings. Bake and cool the bars, then store them in an airtight container. You can also freeze the dough before baking. Just thaw it in the fridge overnight before baking.

What can I substitute for marshmallows?

If you don’t have marshmallows, try using marshmallow fluff. You can also use chocolate-covered marshmallows for a twist. For a different texture, mini meringues can work as a fun alternative. They won’t melt like marshmallows but will still add a nice crunch.

Can I add nuts to this recipe?

Absolutely! Adding nuts can give these bars a nice crunch. Chopped walnuts or pecans pair well with the chocolate and graham crackers. Just fold them in with the chocolate chips and graham cracker crumbs. Aim for about ½ cup of nuts for a great balance.

This article covered all you need for S’mores cookie bars. We looked at ingredients, step-by-step instructions, and tips for the best results. You can substitute items based on what you have at home. Remember to store, freeze, or reheat your bars correctly. With the right tools and a few tricks, you can make these treats perfectly every time. Enjoy experimenting with the variations and don’t hesitate to try something new! Happy bakin

To make S’mores cookie bars, gather these items: - 1 cup unsalted butter, softened - 1 cup packed brown sugar - ½ cup granulated sugar - 2 large eggs, at room temperature - 1 teaspoon pure vanilla extract - 2 ¼ cups all-purpose flour - 1 teaspoon baking soda - ½ teaspoon salt - 1 cup semisweet chocolate chips - 1 cup mini marshmallows - 1 cup graham cracker crumbs These ingredients create a rich, gooey treat that will impress everyone. You can swap some ingredients based on your needs: - Use coconut oil instead of butter for a dairy-free option. - Swap brown sugar for coconut sugar for a lighter flavor. - Use egg substitutes like applesauce or flaxseed meal for a vegan version. - If you want a different taste, try white chocolate chips instead of semisweet. These substitutions keep the essence of S’mores alive while catering to different diets. To prepare these cookie bars, you will need: - A 9x13 inch baking pan - Parchment paper (optional, for easy removal) - Large mixing bowl - Electric mixer or whisk - Measuring cups and spoons - Rubber spatula - Wire rack for cooling Having the right tools makes the process smooth and enjoyable, ensuring delicious results. {{ingredient_image_2}} First, you need to preheat your oven to 350°F (175°C). This step warms the oven for even baking. Next, grab a 9x13 inch baking pan. You can grease it or line it with parchment paper. Lining helps with easy removal later. In a large bowl, add 1 cup of softened unsalted butter. Next, add 1 cup of packed brown sugar and ½ cup of granulated sugar. Use an electric mixer to blend them together. Aim for a light and fluffy mix. This should take about 2-3 minutes. Now, it’s time to add the eggs. Include 2 large eggs, one at a time. Mix well after each addition. Then, pour in 1 teaspoon of pure vanilla extract. Make sure it is combined well with the butter and sugar mixture. In another bowl, whisk together the dry ingredients. You will need 2 ¼ cups of all-purpose flour, 1 teaspoon of baking soda, and ½ teaspoon of salt. Mix these until they are well combined. Gradually add this dry mix to the wet ingredients. Stir until there are no visible flour streaks left. Gently fold in 1 cup of semisweet chocolate chips and 1 cup of graham cracker crumbs. Make sure they are evenly distributed in the dough. Now, pour half of the cookie dough into your baking pan. Press it down evenly to create a base layer. Next, sprinkle 1 cup of mini marshmallows over the first layer. After that, add the remaining cookie dough on top. Spread it gently to cover the marshmallows. Place the pan in the preheated oven. Bake for 25-30 minutes. You want the edges to be golden brown. A toothpick inserted in the center should come out with a few moist crumbs. Once baked, let the bars cool in the pan for at least 15 minutes. Then, transfer them to a wire rack to cool completely. Finally, cut into squares and serve! To get the best texture in your S’mores cookie bars, use softened butter. This helps create a light and fluffy dough. Make sure your eggs are at room temperature. This also helps the dough mix well. When you add the dry ingredients, mix just until no flour streaks remain. Overmixing can lead to tough bars. For a richer taste, consider adding a touch of sea salt on top before baking. This will enhance the chocolate flavor. You can also use different types of chocolate chips, like dark or milk chocolate. This will create new flavor profiles. For a fun twist, try adding a bit of peanut butter to the dough. It pairs nicely with the chocolate and marshmallows. If your bars are too dry, check your measurements. Too much flour can lead to dry bars. If they come out too gooey, they might need more baking time. Keep an eye on them in the oven. If the edges brown too fast, cover the pan with foil. This will help the center bake without overcooking the outside. Pro Tips Chill the Dough: For a thicker cookie bar, chill the dough in the refrigerator for 30 minutes before baking. This helps prevent spreading and enhances the texture. Use Fresh Ingredients: Ensure your baking soda and chocolate chips are fresh for the best flavor and texture. Stale ingredients can affect the outcome of your cookie bars. Don’t Overbake: Keep an eye on the baking time and remove the bars when the edges are golden brown. Overbaking can lead to dry cookie bars. Customize Toppings: Feel free to add other mix-ins like peanut butter chips, nuts, or even a sprinkle of sea salt on top for an extra flavor boost! {{image_4}} To make gluten-free S’mores cookie bars, swap out the all-purpose flour. Use a gluten-free flour blend instead. Many blends work great in baking. Look for one that includes xanthan gum. This will help with texture. Your bars will still be soft and delicious. Ensure all other ingredients are gluten-free too. You can switch the chocolate chips for different types. Try dark chocolate chips for a richer taste. Milk chocolate gives a sweeter flavor. White chocolate can add a fun twist. You can even mix them together. Each type brings its own unique flavor to the bars. Feel free to get creative with add-ins! You can add nuts like walnuts or pecans for crunch. Try using peanut butter chips for a nutty flavor. You might even mix in some toffee bits for extra sweetness. Just remember to keep the balance of flavors in mind. Adding these options can make your bars even more special. To keep your S’mores Cookie Bars fresh, store them in an airtight container. Place a piece of parchment paper between layers to avoid sticking. They stay best at room temperature for up to five days. If you want them to last longer, consider refrigeration. These cookie bars freeze well! First, let them cool completely. Then, wrap them tightly in plastic wrap. Place them in a freezer-safe bag or container. They can stay frozen for up to three months. When ready to enjoy, just thaw them in the fridge overnight. To reheat S’mores Cookie Bars, use an oven set to 350°F (175°C). Place the bars on a baking sheet and warm them for about 10 minutes. You can also microwave individual squares for 15-20 seconds. This brings back the gooey goodness of the marshmallows! S’mores cookie bars last about 5 to 7 days when stored correctly. Keep them in an airtight container at room temperature. This keeps them soft and chewy. If you want to keep them longer, you can freeze them for up to three months. Just wrap them well in plastic wrap and place them in a freezer-safe bag. Yes, you can make these bars ahead of time. They are perfect for meal prep or gatherings. Bake and cool the bars, then store them in an airtight container. You can also freeze the dough before baking. Just thaw it in the fridge overnight before baking. If you don’t have marshmallows, try using marshmallow fluff. You can also use chocolate-covered marshmallows for a twist. For a different texture, mini meringues can work as a fun alternative. They won’t melt like marshmallows but will still add a nice crunch. Absolutely! Adding nuts can give these bars a nice crunch. Chopped walnuts or pecans pair well with the chocolate and graham crackers. Just fold them in with the chocolate chips and graham cracker crumbs. Aim for about ½ cup of nuts for a great balance. This article covered all you need for S’mores cookie bars. We looked at ingredients, step-by-step instructions, and tips for the best results. You can substitute items based on what you have at home. Remember to store, freeze, or reheat your bars correctly. With the right tools and a few tricks, you can make these treats perfectly every time. Enjoy experimenting with the variations and don’t hesitate to try something new! Happy baking!

S’mores Cookie Bars

Delicious cookie bars inspired by classic s'mores, featuring chocolate, marshmallows, and graham crackers.
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Course Dessert
Cuisine American
Servings 12
Calories 250 kcal

Ingredients
  

  • 1 cup unsalted butter, softened to room temperature
  • 1 cup packed brown sugar
  • 0.5 cup granulated sugar
  • 2 large eggs, at room temperature
  • 1 teaspoon pure vanilla extract
  • 2.25 cups all-purpose flour
  • 1 teaspoon baking soda
  • 0.5 teaspoon salt
  • 1 cup semisweet chocolate chips
  • 1 cup mini marshmallows
  • 1 cup graham cracker crumbs

Instructions
 

  • Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking pan or line it with parchment paper for easy removal.
  • In a large mixing bowl, cream together the softened unsalted butter, brown sugar, and granulated sugar until the mixture is light and fluffy. This should take about 2-3 minutes with an electric mixer.
  • Add the eggs one at a time, mixing well after each addition. Incorporate the vanilla extract, ensuring it is combined thoroughly.
  • In a separate bowl, whisk together the all-purpose flour, baking soda, and salt until well combined. Gradually add this dry mixture to the wet ingredients, mixing just until there are no visible flour streaks.
  • Gently fold in the semisweet chocolate chips and graham cracker crumbs until they are evenly distributed throughout the dough.
  • Pour half of the cookie dough into the prepared baking pan and press it down evenly to form a base layer.
  • Sprinkle the mini marshmallows over the cookie dough layer, followed by the remaining cookie dough. Spread it gently to cover the marshmallows.
  • Bake in the preheated oven for 25-30 minutes or until the edges are golden brown and a toothpick inserted in the center comes out with a few moist crumbs.
  • Once baked, allow the bars to cool in the pan for at least 15 minutes before transferring to a wire rack to cool completely.
  • Cut into squares and serve!

Notes

For an extra touch, drizzle melted chocolate over the cooled bars and sprinkle with additional graham cracker crumbs before serving.
Keyword cookie bars, dessert, s'mores

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