Ingredients
Equipment
Method
- Preheat oven to 350°F (175°C). Grease a 9x13-inch baking dish thoroughly.
- Make the cookie layer: In a large bowl, beat 1/2 cup softened butter, brown sugar, 1/4 cup white sugar, and 1/2 teaspoon vanilla until creamy. Add 1 egg and beat until light and fluffy, about 2 minutes.
- In a separate bowl, whisk together 1 1/4 cups flour, 1/2 teaspoon salt, and baking soda. Gradually stir the flour mixture into the butter mixture until just combined. Fold in chocolate chips.
- Press the cookie dough evenly into the prepared baking dish, making sure to reach all corners and edges.
- Make the brownie layer: In a medium bowl, stir together 1 cup sugar, melted butter, and 1 teaspoon vanilla. Add 2 eggs and beat well until smooth.
- Mix in cocoa powder until well combined. Add 1/2 cup flour, baking powder, and 1/8 teaspoon salt, stirring just until the batter comes together.
- Pour the brownie batter over the cookie layer and spread evenly to cover completely.
- Bake for 20-25 minutes, or until a toothpick inserted into the center comes out clean or with just a few moist crumbs.
- Cool completely in the pan before cutting into 20 bars. This ensures clean cuts and prevents crumbling.
Notes
Storage: Store brookies in an airtight container at room temperature for up to 4 days. Add a slice of white bread to keep them soft.
Make Ahead: You can freeze the cookie dough and brownie batter separately, then thaw and assemble when ready to bake.
Variations: Try adding chopped nuts, using white chocolate chips, or swirling in peanut butter for different flavors.
Cutting Tip: Use a sharp knife wiped clean between cuts for the neatest squares.