Ingredients

The following ingredients have 16 Servings
  • 1/2 cup unsalted butter (melted)
  • 3/4 cup granulated sugar
  • 1/2 cup light brown sugar
  • 3/4 cup unsweetened cocoa powder
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1/4 teaspoon baking powder
  • 1/2 cup all-purpose flour*
  • 1/2 cup unsalted butter (melted)
  • 1/4 cup granulated sugar
  • 3/4 cup light brown sugar
  • 1 egg
  • 1 egg yolk
  • 1 tablespoon vanilla extract
  • 1/2 teaspoon baking soda
  • 1 1/2 cups all-purpose flour*
  • 3/4 cup semi-sweet chocolate chips + more to sprinkle over the top before baking

Instruction

  • Preheat oven to 350°F. Line a 9x13-inch pan with parchment paper; set aside. Start with brownie layer. In a large bowl, add butter, both sugars, and cocoa powder. Microwave for 1 minute or until butter is melted. Stir mixture together until combined.
  • Mix in eggs and vanilla very well. Add baking powder and flour, mixing until fully combined. Pour into prepared baking pan.
  • For cookie layer, in a large bowl, mix melted butter and both sugars together until smooth. Add egg, yolk, and vanilla extract and beat until fully combined. Add baking soda and flour, mixing until just combined. Gently fold in chocolate chips. Avoid over-mixing.
  • Drop spoonfuls of dough on top of brownie layer, spreading out to fill any gaps, as needed, in an even layer. It doesn't have to be perfectly covered. Sprinkle some chocolate chips over the top for presentation.
  • Bake for 25-30 minutes or until top cookie layer is slightly browned and edges are set. If the cookie dough begins to brown too quickly, place a piece of aluminum foil loosely across the top. Allow to cool for 30 minutes before cutting into bars.