These homemade brookies combine a fudgy brownie base with a chewy chocolate chip cookie layer — the ultimate two-in-one dessert bar.
Brownie Layer:
½ cup unsalted butter, melted
½ cup brown sugar
¼ cup granulated sugar
1 large egg
1 tsp vanilla extract
½ cup cocoa powder
¼ cup all-purpose flour
¼ tsp salt
¼ cup chocolate chips (optional)
Cookie Layer:
¼ cup unsalted butter, softened
¼ cup brown sugar
2 tbsp granulated sugar
1 egg yolk
½ tsp vanilla extract
½ cup all-purpose flour
¼ tsp baking soda
Pinch of salt
⅓ cup chocolate chips
Preheat oven to 350°F (175°C). Line an 8×8-inch pan with parchment.
Make brownie batter: combine melted butter, sugars, egg, vanilla, then mix in cocoa, flour, salt, and chips.
Spread brownie batter into the pan.
Make cookie dough: cream butter and sugars, mix in egg yolk and vanilla, stir in dry ingredients and chips.
Drop cookie dough over brownie layer and gently spread.
Bake 26–30 minutes, until golden and just set.
Cool completely before slicing.
Store airtight for 3–4 days. Freeze up to 2 months. Customize with nuts, flavored chips, or swirls.