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–+ servings
Two grasshopper brownies stacked on a white plate.
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Grasshopper Brownies

These Grasshopper Brownies are every mint chocolate lover's dream, stacking fudgy brownie, mint Oreos, creamy mint filling, and rich chocolate ganache into one incredible treat!
Prep Time20 minutes
Cook Time30 minutes
Chill Time1 hour 30 minutes
Course: Dessert, Snack
Cuisine: American
Keyword: brownies, grasshopper brownies, mint
Servings: 16 brownies

Ingredients

Brownie Layer

  • ¾ cup butter melted
  • 1 ¼ cups granulated sugar
  • 2 large eggs
  • 1 large egg yolk
  • 1 teaspoon vanilla extract
  • ⅔ cup unsweetened cocoa powder
  • ⅔ cup all-purpose flour
  • ¼ teaspoon salt
  • ½ cup semi-sweet chocolate chips
  • 9 mint chocolate sandwich cookies

Mint Cream Layer

  • 4 tablespoons butter softened
  • 2 cups powdered sugar
  • 1 –3 tablespoons heavy cream
  • ½ teaspoon peppermint extract
  • 2 –3 drops green food coloring

Chocolate Ganache

  • 1 cup semi-sweet chocolate chips
  • ½ cup heavy cream

Instructions

  • Preheat oven to 350°F. Line an 8x8-inch pan with parchment paper.
  • Whisk melted butter and sugar together. Add eggs, egg yolk, and vanilla and whisk until smooth. Stir in cocoa powder, flour, and salt just until combined, then fold in chocolate chips.
    ¾ cup butter, 1 ¼ cups granulated sugar, 2 large eggs, 1 large egg yolk, 1 teaspoon vanilla extract, ⅔ cup unsweetened cocoa powder, ⅔ cup all-purpose flour, ¼ teaspoon salt, ½ cup semi-sweet chocolate chips
  • Spread half the batter into the pan. Arrange cookies in a single layer, then spread remaining batter over the top. Bake 26–30 minutes, until the edges are set and a toothpick comes out with moist crumbs. Cool completely.
    9 mint chocolate sandwich cookies
  • Beat butter, powdered sugar, 1 tablespoon heavy cream, peppermint extract, and food coloring until smooth. Add more cream if needed. Spread over cooled brownies and chill for 30 minutes.
    4 tablespoons butter, 2 cups powdered sugar, 1 –3 tablespoons heavy cream, ½ teaspoon peppermint extract, 2 –3 drops green food coloring
  • Place chocolate chips in a bowl. Heat heavy cream until hot but not boiling, pour over chocolate, and let sit for 2 minutes. Stir until smooth.
    1 cup semi-sweet chocolate chips, ½ cup heavy cream
  • Let ganache cool for about 10 minutes, then spread over the chilled mint layer.
  • Refrigerate for at least 1 hour, or until firm. Lift from the pan, slice, and serve.

Notes

For fudgy brownies, don't overbake. The toothpick should have a few moist crumbs.