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Gooey slutty brownies recipe stacked on a wooden board with melted chocolate and Oreos visible.

Slutty Brownies Recipe: Make the Most Addictive Dessert Ever!

The ultimate three-layered dessert! Chocolate chip cookie dough, Oreos, and rich, fudgy brownies come together in one decadent treat.
Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes
Course Dessert
Cuisine American
Servings 12
Calories 390 kcal

Equipment

  • 9x9-inch baking dish
  • Mixing bowls
  • Hand or stand mixer
  • Parchment paper
  • Spatula

Ingredients
  

For the Cookie Base:

  • 1 batch of chocolate chip cookie dough homemade or store-bought

For the Middle Layer:

  • 16 to 20 Oreo cookies

For the Brownie Layer:

  • 1 batch of brownie batter homemade or boxed
  • ½ cup melted butter
  • 1 cup granulated sugar
  • ½ cup cocoa powder
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • ¾ cup all-purpose flour
  • ½ teaspoon baking soda

Optional Add-ins:

  • ¼ cup melted dark chocolate for extra fudgy texture
  • Chopped nuts peanut butter, or caramel (for fun variations)

Instructions
 

  • Preheat your oven to 350°F (175°C). Grease a 9x9-inch baking dish and line it with parchment paper.
  • Press the cookie dough evenly into the bottom of the dish to form the first layer.
  • Place Oreo cookies on top of the cookie dough in a single layer. Do not press down.
  • In a mixing bowl, whisk together melted butter, sugar, and cocoa powder until smooth. Add eggs and vanilla, then stir in flour and baking soda until just combined.
  • Pour the brownie batter over the Oreo layer and smooth the top with a spatula.
  • Bake for 35–40 minutes, or until a toothpick inserted comes out with a few moist crumbs.
  • Cool completely in the pan for at least 30 minutes before slicing.

Notes

Pro Tip: Add 1/4 cup melted dark chocolate to the brownie batter for extra richness. You can use boxed brownie mix and store-bought cookie dough for convenience.