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A close-up shot of four freshly baked slutty brownies stacked on a white plate, showing distinct layers of golden cookie base, Oreo center, and fudgy brownie top, with a baking pan in the background.

Easy Slutty Brownie Recipe

This Slutty Brownie Recipe layers a chewy chocolate chip cookie base, crunchy Oreo middle, and rich fudgy brownie top for a decadent dessert that's always a crowd-pleaser.
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Prep Time 15 minutes
Cook Time 25 minutes
Chill Time 10 minutes
Total Time 50 minutes
Servings: 16 squares
Course: Baking, Dessert, Snack
Cuisine: American
Calories: 380
Ingredients Equipment Method

Ingredients
  

  • ½ cup Unsalted butter Softened
  • ½ cup Brown sugar Packed
  • ¼ cup White sugar
  • 1 large Egg Room temp
  • 1 teaspoon Vanilla extract
  • 1 ¼ cups All-purpose flour
  • ½ teaspoon Baking soda
  • ¼ teaspoon Salt
  • ½ cup Chocolate chips Semi-sweet or dark
Oreo Layer:
  • 24 pieces Oreos Mix & match flavors
Brownie Layer:
  • ½ cup Dark chocolate Melted
  • ¼ cup Cocoa powder Unsweetened
  • ½ cup Butter Melted
  • 1 cup Sugar
  • 2 large Eggs Room temp
  • 1 teaspoon Vanilla extract
  • ¾ cup All-purpose flour
  • ¼ teaspoon Salt

Equipment

  • 19x13 Baking Pan Non-stick, straight sides for even layers
  • Mixing bowls Large enough for batter mixing
  • Hand/stand mixer For smooth cookie dough and brownie batter
  • Rubber spatula Helps with even spreading
  • Offset spatula For leveling the brownie layer
  • Parchment paper Makes removing brownies easier
  • Double Boiler Optional, for melting chocolate

Method
 

Make the Cookie Base
  1. Cream butter and sugars until fluffy.
  2. Add egg and vanilla, mixing well.
  3. Stir in flour, baking soda, and salt until just combined.
  4. Fold in chocolate chips.
  5. Press dough into a parchment-lined 9x13 pan.
  6. Chill in the fridge while preparing the next layer.
Add the Oreo Layer
  1. Arrange Oreos evenly over the cookie dough.
  2. Leave small gaps but don’t overlap.
Prepare the Brownie Layer
  1. Melt chocolate and butter together until smooth.
  2. Whisk in sugar, eggs, and vanilla.
  3. Sift in cocoa powder, flour, and salt, stirring gently.
  4. Pour brownie batter over the Oreo layer and spread evenly.
Bake to Perfection
  1. Preheat oven to 350°F (175°C).
  2. Bake on the center rack for 30-35 minutes.
  3. Insert a toothpick in the center—moist crumbs are okay.
Cool & Slice
  1. Let brownies cool completely before cutting.
  2. For cleaner slices, use a hot knife.