Go Back
- 1 box brownie mix (plus required eggs, oil, and water as specified on the box) - 1 cup graham cracker crumbs - 1/2 cup unsalted butter, melted - 1 cup mini marshmallows - 1 cup milk chocolate chips - 1/2 teaspoon vanilla extract - A pinch of salt To create S’mores brownie bars, you need a few key ingredients. First, grab a box of brownie mix. Make sure you have the eggs, oil, and water needed for that mix. Next, you will need graham cracker crumbs. These will form the base of your dessert. For the crust, combine the graham cracker crumbs with melted butter. This mix gives a rich and buttery flavor. Next, we add toppings. You'll need mini marshmallows and milk chocolate chips. These will melt and create that classic S’mores experience. Don't forget to enhance your brownie batter with a bit of vanilla extract and a pinch of salt. This simple addition makes a big difference in taste. Gather these ingredients, and you’re ready to make a delicious treat! {{ingredient_image_2}} 1. Preheat oven and prepare baking pan Start by preheating your oven to 350°F (175°C). This step is key for even baking. Grease a 9x13 inch baking pan lightly. You can also line it with parchment paper. Leave some paper hanging over the sides. This makes it easy to lift out your bars later. 2. Make the graham cracker crust In a mixing bowl, combine 1 cup of graham cracker crumbs with 1/2 cup of melted unsalted butter. Mix until all crumbs are coated. Press this mixture firmly into the bottom of your prepared pan. Make sure it is compact and even. This crust gives a nice, crunchy base. 3. Prepare and pour brownie batter In another bowl, prepare 1 box of brownie mix according to the package instructions. You will also need to add the required eggs, oil, and water. To enhance flavor, add 1/2 teaspoon of vanilla extract and a pinch of salt. Mix well until smooth. Pour the brownie batter evenly over the graham cracker crust. 1. Bake the brownie layer Place the pan in the preheated oven. Bake for about 20-25 minutes. To check if it’s done, insert a toothpick into the center. It should come out with a few moist crumbs. This means your brownies are fudgy and perfect. 2. Add toppings and bake again Once you take the brownies out of the oven, sprinkle 1 cup of milk chocolate chips and 1 cup of mini marshmallows on top. The heat will start to melt them. Return the pan to the oven for another 5-7 minutes. Keep a close eye until the marshmallows puff and turn golden. 3. Cool and cut into squares After baking, let the S'mores brownie bars cool in the pan for about 10 minutes. Then, move them to a wire rack to cool completely. Once cool, use the parchment paper to lift the brownies out of the pan. Cut them into squares or bars before serving. Enjoy the gooey, chocolatey goodness! To get the right texture in your S’mores brownie bars, use the toothpick test. This test helps you know when your brownies are done. Insert a toothpick into the center. If it comes out with a few moist crumbs, they are perfect. If it’s clean, the brownies may be dry. Baking time is key. Aim for about 20-25 minutes for the brownie layer. Ovens can vary, so check a few minutes early. The edges should look set, while the center may appear slightly soft. This means you will get that fudgy texture. Want to add more depth of flavor? Try mixing in a bit of coffee or espresso powder into the brownie batter. It enhances the chocolate taste without being too strong. You can also use dark chocolate chips instead of milk chocolate for a richer flavor. If you need substitutions for ingredients, that’s easy too. You can use a gluten-free brownie mix if you prefer. Swap out regular butter for coconut oil to make it dairy-free. Both changes keep the bars delicious. Pro Tips Chill the Brownies: For cleaner cuts, refrigerate the brownies for about an hour after they have cooled completely. This helps firm them up, making it easier to cut into perfect squares. Use Quality Chocolate: Opt for high-quality chocolate chips for a richer flavor. The chocolate is a key component, so choosing the best will elevate your S’mores brownie bars. Experiment with Toppings: Feel free to customize your S’mores brownie bars with additional toppings like crushed nuts, toffee bits, or a drizzle of caramel for extra decadence. Keep an Eye on the Marshmallows: When baking the marshmallows, watch them closely to prevent burning. They should be golden and puffy, but not charred. {{image_4}} You can make your S’mores brownie bars even more fun with different toppings. Try using dark chocolate or white chocolate chips instead of milk chocolate. Each option gives a unique taste. You can also mix in peanut butter chips for a nutty twist. If you want to get creative, use flavored marshmallows. Choices like chocolate or strawberry marshmallows can add a new layer of flavor. It’s a simple way to change the whole vibe of your dessert. If you need gluten-free options, swap the brownie mix for a gluten-free version. Many brands offer great gluten-free brownie mixes. You can also crush gluten-free graham crackers for the crust. For vegan substitutes, use a plant-based brownie mix and flax eggs instead of regular eggs. Melted coconut oil can replace butter. These tweaks keep the taste while meeting dietary needs. Everyone can enjoy these delicious bars! To keep your S’mores brownie bars fresh, store them in an airtight container. This prevents them from drying out. You can use a glass or plastic container with a tight lid. If you stack the bars, place parchment paper between layers to avoid sticking. Keep them at room temperature for up to four days. You can freeze S’mores brownie bars to enjoy later. First, let them cool completely. Then, wrap each bar in plastic wrap and place them in a freezer-safe bag. This keeps them fresh for up to three months. When you're ready to eat them, take the bars out and let them thaw in the fridge overnight. For a quick option, you can also thaw them at room temperature for about an hour. Enjoy your treat whenever you want! Can I use homemade brownie mix? Yes, you can use homemade brownie mix. Just follow your favorite recipe. Make sure it has the same texture as store-bought mixes. How do I know when they are done? You can check if they are done by using a toothpick. Insert it into the center of the brownies. If it comes out with a few moist crumbs, they are ready. Can I make these in advance? Absolutely! You can make these in advance. Just store them in an airtight container. They will stay fresh for a few days. What can I serve with S’mores Brownie Bars? These bars pair well with ice cream or whipped cream. You can also serve them with hot chocolate for a cozy treat. You learned how to make S’mores Brownie Bars from start to finish. We covered ingredients, preparation, baking steps, and valuable tips. Remember to test for texture while baking. Feel free to explore different toppings and dietary options. Store them well for lasting freshness or freeze for later. Enjoy these sweet treats; they are sure to impress! Happy baking!

S’mores Brownie Bars

Delicious brownie bars layered with graham cracker crust, chocolate chips, and marshmallows.
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 box brownie mix (plus required eggs, oil, and water as specified on the box)
  • 1 cup graham cracker crumbs
  • 1/2 cup unsalted butter, melted
  • 1 cup mini marshmallows
  • 1 cup milk chocolate chips
  • 1/2 teaspoon vanilla extract
  • a pinch salt

Instructions
 

  • Preheat your oven to 350°F (175°C). Prepare a 9x13 inch baking pan by greasing it lightly or lining it with parchment paper, allowing some overhang to aid in easy removal later.
  • In a mixing bowl, combine the graham cracker crumbs with the melted butter. Stir until the crackers are evenly coated with butter. Firmly press this mixture into the bottom of the prepared baking pan, ensuring it forms a compact and even layer for your crust.
  • In a separate bowl, prepare the brownie mix as per the package instructions. Enhance the flavor by adding the vanilla extract and a pinch of salt. Once mixed, pour the brownie batter carefully over the graham cracker crust, spreading it out evenly.
  • Bake the brownie layer in the preheated oven for approximately 20-25 minutes. To check for doneness, insert a toothpick into the center— it should come out with a few moist crumbs (not completely clean indicates perfect fudginess).
  • As soon as you remove the brownies from the oven, generously sprinkle the milk chocolate chips and mini marshmallows over the hot brownie layer.
  • Return the pan to the oven for an additional 5-7 minutes, watching closely until the marshmallows are puffed and have taken on a light golden color.
  • Allow the S’mores brownie bars to cool in the pan for about 10 minutes, then carefully move them to a wire rack to cool completely.
  • Once fully cooled, use the parchment overhang to lift the brownies out of the pan. Cut them into squares or bars to serve.

Notes

For an extra touch, drizzle chocolate sauce over the top and top with additional mini marshmallows.
Keyword brownies, chocolate, dessert, s'mores