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Mint Oreo Brownies

Mint Oreo Brownies are stuffed with mint Oreos, topped with mint frosting, and sprinkled with more crushed Oreo's and a gooey fudge drizzle.
Prep Time30 mins
Cook Time30 mins
Additional Time40 mins
Total Time1 hr 40 mins
Cuisine: American
Servings: 24 brownies
Calories: 238kcal


For the Brownies

  • ½ cup butter
  • ½ cup oil
  • 2 cups granulated sugar
  • 4 eggs
  • 2 teaspoons vanilla
  • ¼ teaspoon mint extract
  • cup cocoa powder
  • 1 cup all purpose flour
  • ½ teaspoon salt
  • ½ teaspoon baking powder
  • 1 15.5 ounces package Mint Oreos

For the Mint Buttercream

  • ½ cup butter softened
  • 1 ¾ cups powdered sugar
  • 1-2 tablespoons heavy cream or milk
  • ¼ to ½ teaspoon mint extract
  • a few drops green food coloring

For the Fudge Drizzle

  • 3 tablespoons butter
  • 3 tablespoons cocoa powder
  • 1 tablespoon corn syrup or honey
  • 1/2 cup powder sugar
  • 1-2 tablespoons milk or heavy cream


Brownie Instructions

  • Preheat oven to 350°F. Grease and flour a 9 x 13 inch pan. Melt the butter in a large microwave safe bowl. Whisk in the oil, sugar, eggs, vanilla and mint extracts. Beat in the cocoa, flour, salt and baking powder.
  • Spread half the batter into the prepared pan, layer on 24 whole mint oreos and spread the second half of the batter on half. Bake for 25-30 minutes or until an inserted toothpick comes out with a few crumbs. Let cool completely.

Frosting Instructions

  • Beat the butter in a stand mixer for 1-2 minutes, beat in the powdered sugar. Add enough of the milk or cream to be a spreadable consistency and the mint extract to your tastes. Spread on top of cooled brownies.
  • Gently crush the remaining oreos in the package and sprinkle on top of the frosted brownies.

Fudge Drizzle Instructions

  • Melt the butter in a medium microwave safe bowl. Stir in the cocoa powder, corn syrup, powdered sugar, and enough milk or heavy cream to make a smooth consistency. Microwave up to 20 seconds, as needed, and stir.
  • Drizzle on top of cooled brownies. I put mine into a ziploc bag and cut the corner off for a more controlled drizzle. Let cool and cut into bars.


Serving: 1brownie | Calories: 238kcal | Carbohydrates: 26g | Protein: 2g | Fat: 15g | Saturated Fat: 7g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 6g | Trans Fat: 1g | Cholesterol: 51mg | Sodium: 149mg | Potassium: 69mg | Fiber: 1g | Sugar: 19g | Vitamin A: 321IU | Calcium: 18mg | Iron: 1mg