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Ultimate Fudgy Brookie Bars Recipe from Scratch

A close-up of a fudgy, layered brookie showing a dark chocolate brownie base and a lighter cookie layer, topped with chocolate chips.

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Make the best brookies by layering fudgy brownies with chewy chocolate chip cookies for a decadent dessert bar. This recipe focuses on achieving the perfect texture balance.

Ingredients

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  • 1 cup (2 sticks) unsalted butter, melted
  • 1 1/2 cups granulated sugar
  • 1 cup packed light brown sugar
  • 4 large eggs
  • 1 tablespoon vanilla extract
  • 1 cup all-purpose flour
  • 3/4 cup unsweetened cocoa powder
  • 1/2 teaspoon salt
  • 1/2 teaspoon baking powder
  • 1 cup semi-sweet chocolate chips (for brownie layer)
  • 1 cup (2 sticks) unsalted butter, softened
  • 1 cup granulated sugar
  • 3/4 cup packed light brown sugar
  • 2 large eggs
  • 2 1/4 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 teaspoon vanilla extract
  • 1 1/2 cups semi-sweet chocolate chips (for cookie layer)

Instructions

  1. Preheat your oven to 350°F (175°C). Grease and line a 9×13 inch baking pan with parchment paper, leaving an overhang for easy removal.
  2. Prepare the brownie batter: In a large bowl, whisk together the melted butter and both sugars until combined. Beat in the eggs one at a time, then stir in the vanilla.
  3. In a separate bowl, whisk together the flour, cocoa powder, salt, and baking powder. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Stir in the 1 cup of chocolate chips. Spread this brownie batter evenly into the prepared pan.
  4. Prepare the chocolate chip cookie dough: In a separate bowl, cream together the softened butter and sugars until light and fluffy. Beat in the eggs one at a time, then add the vanilla.
  5. In another bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Stir in the 1 1/2 cups of chocolate chips.
  6. Layer the cookie dough over the brownie batter. Drop spoonfuls of the cookie dough evenly over the brownie layer. Use a knife or offset spatula to gently spread the cookie dough to cover the brownie layer completely. Do not mix the layers.
  7. Bake for 35 to 40 minutes. The edges should look set, and a toothpick inserted near the center should come out with moist crumbs attached, not wet batter, for a fudgy texture.
  8. Let the brookies cool completely in the pan on a wire rack before lifting them out using the parchment paper overhang. Cut into bars.

Notes

  • For crisp edges, bake closer to 40 minutes. For a fudgier center, pull them out closer to 35 minutes.
  • You can use brown butter in the brownie layer for a deeper flavor profile.
  • Chill the bars for at least one hour before slicing for cleaner cuts.

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