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Mint Chocolate Brownies: These decadent mint chocolate brownies begin with a dense and fudgy brownie base that's topped with a creamy mint frosting and a layer of smooth chocolate ganache.
5 from 2 votes
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Mint Chocolate Brownies

These decadent mint chocolate brownies begin with a dense and fudgy brownie base that's topped with a creamy mint frosting and a layer of smooth chocolate ganache.
Prep Time15 minutes
Bake Time25 minutes
Total Time40 minutes
Recipe Author Lynn April
Servings: 16 brownies

Ingredients

BROWNIE BASE

  • ½ cup (113g) unsalted butter cut into 6-8 slices
  • 8 ounces (227g) semi-sweet chocolate coarsely chopped
  • ¾ cup (150g) firmly packed brown sugar
  • ¼ cup (50g) granulated sugar
  • 3 large eggs room temperature preferred1
  • 1 teaspoon vanilla extract
  • ¾ cup (90g) all-purpose flour be sure to measure properly
  • ¼ teaspoon salt

MINT FROSTING

  • ½ cup (113g) unsalted butter softened to room temperature
  • 2 cups (240g) powdered sugar
  • ¼ cup (60mL) milk or cream
  • ½ to ¾ teaspoon peppermint extract
  • 2 drops green liquid or gel food coloring

CHOCOLATE GANACHE

  • 1 cup (175g) semi-sweet chocolate chips
  • ⅔ cup (160mL) heavy cream
Need to keep track of your ingredients?Check out my Printable Ingredient List!

Instructions

BROWNIE BASE

  • Preheat the oven to 350ºF (177ºC). Line an 8" or 9" square baking pan with foil and spray with nonstick spray. Set aside.
  • In a medium saucepan over medium heat, melt the butter and chopped chocolate, stirring frequently until completely smooth. Allow to cool for about 15 minutes.
  • Whisk sugar into cooled chocolate mixture until combined. Add the eggs one at a time, whisking after each addition until smooth. Whisk in the vanilla. Add the flour and salt and stir gently until completely combined.
  • Pour the batter into the prepared pan. Bake brownies for 25-30 minutes or until a toothpick inserted in the center comes out mostly clean. Allow brownies to cool completely before moving on to the other two layers. I find it best to prepare the mint frosting and chocolate ganache layers while the brownies are baking or cooling. That way, they are ready when the brownie base is cool enough to work with.

MINT FROSTING

  • In a large bowl with a handheld mixer, or a stand mixer fitted with the paddle attachment, beat the butter on medium speed until creamy, about 2 minutes.
  • With the mixer on low, add in the powdered sugar, peppermint extract, and milk or cream. Add the food coloring, increase mixer speed to medium, and beat until completely smooth, about 3 minutes. If frosting is too stiff, add more milk. If it is too thin, add more powdered sugar.

CHOCOLATE GANACHE

  • Pour the chocolate chips into a small bowl. Set aside.
  • In a small saucepan over medium heat, heat the heavy cream while whisking occasionally until steaming. Remove from heat and pour over the chocolate chips. Whisk the chocolate and the cream together until it it smooth. Allow to cool at least 20 minutes before using.

ASSEMBLE THE BROWNIES

  • When your brownie base is completely cool, use a spatula to spread the mint frosting evenly over the brownies.
  • Working quickly, pour the ganache evenly over the mint frosting layer. It will probably spread out evenly on its own, but you can use a spatula or spoon to gently guide the ganache into the corners of the pan.
  • Place pan of brownies in the refrigerator to allow ganache to set completely, at least 2 hours.
  • When you are ready to cut the brownies, remove the brownies by lifting the foil overhang straight up. Peel back remaining foil and place brownie block onto a large cutting board.
  • Use a sharp knife to make quick cuts, so as to prevent chocolate ganache smearing onto the mint layer as much as possible. Cleaning the knife off between each cut also helps. Store leftover brownies in the refrigerator, up to 1 week. Brownies freeze well, up to 3 months. Thaw in refrigerator overnight.

Notes

  1. Room temperature eggs: these incorporate into batter much more easily than cold eggs, although this is not absolutely necessary.
Adapted from homemade fudgy brownies and mint chocolate chip cupcakes

Nutrition Disclosure

All nutritional values are approximate and provided to the reader as a courtesy. Changing ingredients and/or quantities will alter the estimated nutritional calculations.

Serving: 1 brownie | Calories: 439kcal | Carbohydrates: 47g | Protein: 4g | Fat: 27g | Saturated Fat: 16g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Trans Fat: 0.5g | Cholesterol: 78mg | Sodium: 59mg | Potassium: 193mg | Fiber: 2g | Sugar: 38g | Vitamin A: 612IU | Vitamin C: 0.1mg | Calcium: 42mg | Iron: 2mg
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