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Mint Oreo Brownies

Mint Oreo Brownies are stuffed with mint Oreos, spread with mint frosting, and topped with more mint Oreo's and a fudge drizzle.
Prep Time30 mins
Cook Time30 mins
Additional Time40 mins
Total Time1 hr 40 mins
Cuisine: American
Servings: 24 brownies
Author: Mallory


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 package 15.5 ounces mint oreos, divided

For the Mint Buttercream

  • ½ cup butter softened
  • 1 and 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


  • To make the brownies, 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.
  • To make the mint buttercream layer, 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.
  • to make the fudge drizzle, 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 to 20 seconds 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