A delicious combination of cookie and brownie layers, known as brookies, with a rich brown butter flavor. The recipe includes a cookie layer with chocolate chips and a brownie layer rich with cocoa and butter, baked to perfection.
1: Preheat oven to 350°F and line an 8x8 inch pan with parchment paper.
2: For the cookie layer: Mix flour, baking soda, and salt. Set aside. Combine melted butter, brown sugar, granulated sugar, egg, and vanilla, and whisk until smooth and fluffy for about 2-3 minutes. Add dry ingredients and chocolate chips, mixing until just combined.
3: For the brownie layer: Melt butter in a saucepan over medium-low heat, stirring every 10 seconds until foamy (6-8 minutes). Continue until milk solids turn golden brown and smell nutty. Transfer to a heatproof bowl and add cocoa powder, oil, vanilla, and chopped chocolate; mix until smooth.
4: In a separate bowl, whisk eggs and light brown sugar for 5-6 minutes until dissolved. Add powdered sugar and mix for 1-2 minutes until combined. Add cooled browned butter mixture and mix until smooth. Add flour and chocolate chips, mixing until well combined.
5: Layer the cookie and brownie batters in the prepared pan.
6: Bake for 50-55 minutes or until the edges are golden and the center is a little fudgy.
7: Let cool completely before cutting into brookies.
