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Ultimate Cookie Oreo Brownies

Three decadent layers of dessert bliss — buttery cookie dough, crunchy Oreos, and rich fudgy brownies — baked together into one irresistible bar.
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Prep Time 20 minutes
Cook Time 40 minutes
Total Time 1 hour
Servings: 16 bars
Course: Dessert
Cuisine: American
Calories: 320
Ingredients Equipment Method Notes

Ingredients
  

Cookie Dough Layer
  • 1/2 cup unsalted butter, melted
  • 1/2 cup brown sugar
  • 1/4 cup granulated sugar
  • 1 large egg
  • 1 tsp vanilla extract
  • 1 1/4 cups all-purpose flour
  • 1/2 tsp baking soda
  • 1/4 tsp salt
  • 1/2 cup chocolate chips
Middle Layer
  • 16 Oreo cookies
Brownie Layer
  • 1/2 cup unsalted butter, melted
  • 1 cup granulated sugar
  • 2 large eggs
  • 1 tsp vanilla extract
  • 1/3 cup unsweetened cocoa powder
  • 1/2 cup all-purpose flour
  • 1/4 tsp salt
  • 1/2 cup chocolate chips (optional)

Equipment

  • Mixing bowls
  • 8x8 baking pan
  • Whisk
  • Spatula
  • Parchment paper

Method
 

  1. Preheat oven to 350°F and line an 8x8 pan with parchment paper.
  2. Mix melted butter, sugars, egg, and vanilla for cookie dough; add dry ingredients and chocolate chips. Press into pan.
  3. Arrange Oreo cookies in a single layer on top of the cookie dough.
  4. Make brownie batter: combine melted butter, sugar, eggs, and vanilla; add cocoa, flour, and salt. Pour over Oreos.
  5. Bake 35–40 minutes, cool completely, and slice into bars.

Notes

Chill before slicing for neat layers. Serve with milk or ice cream for the ultimate dessert experience.