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The Ultimate Fudgy Oreo Brownies with a Shiny Crackly Top

Close-up of a fudgy Oreo brownie slice topped with whole Oreo pieces, showing a shiny crust.

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Make rich, decadent Oreo brownies that are perfectly fudgy and feature that sought-after shiny, crackly top. This easy recipe uses simple ingredients to create a bakery-style dessert bar packed with chocolate and cookie crunch.

Ingredients

Scale
  • 1 cup (2 sticks) unsalted butter, melted
  • 2 cups granulated sugar
  • 1 cup packed light brown sugar
  • 4 large eggs, room temperature
  • 1 tablespoon vanilla extract
  • 1 cup all-purpose flour
  • ¾ cup unsweetened cocoa powder
  • 1 teaspoon salt
  • ½ teaspoon baking powder
  • 1 cup chocolate chips (semi-sweet or dark)
  • 1 package (about 14.3 oz) Oreo cookies, roughly chopped (about 24 cookies)

Instructions

  1. Preheat your oven to 350°F (175°C). Line a 9×13 inch baking pan with parchment paper, leaving an overhang on the sides for easy removal. Lightly grease the paper.
  2. In a large bowl, whisk together the melted butter, granulated sugar, and brown sugar until fully combined.
  3. Whisk in the eggs one at a time until the mixture is smooth. Stir in the vanilla extract.
  4. In a separate medium bowl, whisk together the flour, cocoa powder, salt, and baking powder.
  5. Gradually add the dry ingredients to the wet ingredients, mixing on low speed or by hand until just combined. Do not overmix.
  6. Gently fold in the chocolate chips and about two-thirds of the chopped Oreo cookies.
  7. Spread half of the brownie batter evenly into the prepared pan. Sprinkle half of the remaining chopped Oreos over the batter.
  8. Dollop the remaining brownie batter over the first layer and gently spread it out. Top with the remaining chopped Oreos.
  9. Bake for 30 to 35 minutes. For fudgy brownies, the center should still look slightly underdone when you remove them. A toothpick inserted near the edge should come out with moist crumbs attached, not wet batter.
  10. Let the brownies cool completely in the pan on a wire rack before lifting them out using the parchment overhang.
  11. Once cool, cut into squares. These are best served at room temperature or slightly chilled.

Notes

  • For the best shiny top, do not overmix the batter once the flour is added. Overmixing develops gluten, which prevents the signature crackle.
  • If you want a thicker, more decadent bar, use an 8×8 inch pan instead, but increase the baking time by 10 to 15 minutes.
  • Use high-quality cocoa powder for the richest chocolate flavor in these chocolate Oreo treats.

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