A rich, chewy combo of fudgy brownies and nutty brown butter chocolate chip cookie dough baked into one decadent treat.
For Cookie Layer:
¾ cup unsalted butter, browned
½ cup brown sugar
¼ cup granulated sugar
1 egg + 1 egg yolk
1½ tsp vanilla extract
1¼ cups all-purpose flour
½ tsp baking soda
½ tsp salt
¾ cup chocolate chips
For Brownie Layer:
½ cup melted butter
1 cup granulated sugar
2 eggs
1 tsp vanilla extract
⅓ cup cocoa powder
½ cup all-purpose flour
¼ tsp salt
Brown the butter for the cookie layer and let cool. Mix with sugars, eggs, and vanilla.
Stir in flour, baking soda, salt, and chocolate chips. Set aside.
For brownie layer: whisk melted butter, sugar, eggs, and vanilla. Stir in cocoa, flour, and salt.
Preheat oven to 350°F. Line a 9×9 pan.
Press cookie dough into the pan. Spread brownie batter on top.
Bake 28–35 minutes. Cool completely before cutting.
Add walnuts for crunch. Chill dough for cleaner layers. Store at room temp or freeze in slices.