Rich, layered brownie bars with a cookie base and fudgy chocolate layer. Perfect for chocolate lovers and gatherings.
Cookie Layer:
1/2 cup unsalted butter, softened
1/2 cup brown sugar, packed
1/4 cup granulated sugar
1 large egg
1 teaspoon vanilla extract
1 cup all-purpose flour
1/2 teaspoon baking soda
1/4 teaspoon salt
1/2 cup chocolate chips (optional)
Brownie Layer:
1/2 cup unsalted butter, melted
1/2 cup semisweet chocolate, melted
3/4 cup granulated sugar
2 large eggs
2 teaspoons vanilla extract
1/3 cup unsweetened cocoa powder
1/2 cup all-purpose flour
1/4 teaspoon salt
1/2 teaspoon baking powder
1/2 cup chocolate chips (optional)
Preheat oven to 350°F (175°C) and line a 9×9-inch pan with parchment paper.
Prepare cookie layer and spread in pan.
Prepare brownie layer and spread over cookie layer.
Bake 25–30 minutes until edges are set.
Cool completely, then slice.
Store in airtight container or freeze.
Sprinkle sea salt, add nuts, or caramel for variation. Chill before slicing for clean edges.