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Kitchen Sink Brownies

Kitchen Sink Brownies are thick fudge brownies made with cocoa powder. Add-ins include broken sandwich cookies, white and dark chocolate chips and chopped milk chocolate.
Prep Time10 mins
Cook Time55 mins
Total Time1 hr 5 mins
Course: Dessert
Cuisine: American
Servings: 24
Author: Cookie Madness


  • 1 1/2 cups all-purpose flour
  • 1 cup unsweetened cocoa powder
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon baking soda
  • 3/4 teaspoon salt
  • 3 sticks 12 oz unsalted butter, melted
  • 1 1/2 cups granulated sugar
  • 1 1/2 cups firmly packed light brown sugar
  • 4 large eggs
  • 1/4 cup brewed coffee
  • 2 teaspoons vanilla
  • 1 cup broken sandwich cookies
  • 4 ounces chopped milk chocolate
  • 1/2 cup each dark chocolate and white chocolate morsels
  • 1 cup pecan pieces


  • Line a 9x13 inch metal pan with parchment of foil and spray foil with cooking spray.
  • In a bowl, whisk together flour, cocoa powder, baking powder, baking soda and salt.
  • Beat butter and sugars at medium speed with an electric mixer until smooth; add eggs, coffee and vanilla, beating until just blended. Add flour mixture, beat at medium speed until just blended. Stir in sandwich cookies and remaining add-ins.
  • Spoon batter into prepared pan, spreading evenly.
  • Bake at 325, for 55-58 minutes. Cool completely in pan on wire rack. Cover and chill at least 2 hours, but preferably overnight.
  • Lift from pan and cut into brownies.