Preheat the Oven: Set your oven to 350°F (175°C). Prepare a 9x13 inch baking pan by greasing it or lining it with parchment paper for easy removal of the blondies.
Brown the Butter: In a medium saucepan, melt the unsalted butter over medium heat. Stir frequently for 5-7 minutes until the butter turns a golden brown color and emits a nutty fragrance. Watch carefully to prevent burning. Once browned, remove the pan from heat and let it cool slightly.
Mix the Sugars: In a large mixing bowl, combine the browned butter, packed brown sugar, and granulated sugar. Whisk them together until the mixture is smooth and well-integrated.
Incorporate Eggs and Vanilla: Add the eggs to the sugar mixture one at a time, ensuring to mix well after each addition. Then pour in the vanilla extract, folding it into the mixture until fully incorporated.
Combine Dry Ingredients: In a separate bowl, sift together the all-purpose flour, baking powder, baking soda, and salt until well mixed.
Incorporate Dry into Wet: Gradually add the dry ingredient mixture into the wet ingredients. Stir gently until just combined, being careful not to overmix as this can affect the texture of your blondies.
Fold in Chocolate and Optional Nuts: Using a spatula, gently fold in the chocolate chips and the chopped nuts (if using) until they are evenly dispersed throughout the batter.
Bake: Pour the batter into your prepared baking pan, smoothing the top with a spatula. Place the pan in the preheated oven and bake for 25-30 minutes. The blondies are ready when a toothpick inserted into the center comes out with a few moist crumbs.
Cool and Slice: Allow the blondies to cool in the pan for at least 10 minutes. Once slightly cooled, transfer them to a wire rack to cool completely. When ready, slice into 24 squares.
Notes
Serve warm with a sprinkle of sea salt for enhanced flavor.
Keyword blondies, brown butter, chocolate chips, dessert