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Delicious homemade mint brownies on a white plate with a mint leaf garnish.

Mint Brownies

Indulge in these decadent mint brownies with fudgy layers, creamy mint frosting, and a smooth chocolate topping—a delightful treat for any occasion.
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Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings: 16 pieces
Course: Dessert, Snack
Cuisine: American
Calories: 250
Ingredients Method Notes

Ingredients
  

Brownie Base
  • 1 cup unsalted butter, melted
  • 1 cup granulated sugar
  • 1/2 cup brown sugar
  • 3 large eggs
  • 1 teaspoon vanilla extract
  • 3/4 cup unsweetened cocoa powder Use high-quality cocoa powder for better flavor.
  • 1 cup all-purpose flour
  • 1/2 teaspoon salt
Mint Frosting
  • 1/4 cup unsalted butter, softened
  • 2 cups powdered sugar
  • 1 1/2 teaspoons peppermint extract Use pure peppermint extract for a fresher taste.
  • 2-3 drops green food coloring Optional for visual appeal.
Chocolate Topping
  • 1 cup semi-sweet chocolate chips
  • 1/4 cup heavy cream

Method
 

Preparation
  1. Preheat your oven to 350°F and line an 8x8-inch baking pan with parchment paper for easy removal.
  2. In a large bowl, whisk the melted butter with the granulated and brown sugar until it appears glossy and smooth.
  3. Add in the eggs one at a time and the vanilla extract, whisking until fully combined.
  4. Sift in the cocoa powder, flour, and salt, then stir just until combined—be careful not to overmix. The batter should be thick but not dry.
  5. Spread the brownie batter evenly into the prepared pan, smoothing the top.
Baking
  1. Bake for 28 to 32 minutes, or until the center is just set. A toothpick should come out with a few moist crumbs.
  2. Allow the brownies to cool completely in the pan on a wire rack.
Mint Frosting
  1. In a medium bowl, beat the softened butter with the powdered sugar, peppermint extract, and green food coloring until smooth and creamy.
  2. Spread the mint filling evenly over the cooled brownies, ensuring even coverage.
  3. Chill the pan in the refrigerator for 20 to 30 minutes, or until the mint layer is firm.
Chocolate Topping
  1. Melt the semi-sweet chocolate chips with the heavy cream in a microwave-safe bowl. Use short intervals, stirring until completely smooth.
  2. Spread the melted chocolate over the chilled mint layer, ensuring an even coat.
  3. Refrigerate for an additional 45 to 60 minutes, or until the chocolate topping is fully set.
Serving
  1. Lift the brownies from the pan using the parchment paper, then slice into squares before serving.

Notes

For an eye-catching presentation, drizzle additional melted chocolate over the brownies. These are perfect for holiday gatherings or cozy family nights. For variations, see the dietary lab for vegan, gluten-free, and keto-friendly options.