Mint Chocolate Brownies are a rich and indulgent layered dessert that combines fudgy chocolate brownies, a creamy peppermint frosting, and a smooth chocolate ganache topping. Perfect for the holidays or any time you’re craving a refreshing twist on a classic chocolate treat.

Why You’ll Love This Recipe

Triple layers of decadence: Fudgy brownie base, cool mint frosting, and silky ganache
Perfect holiday dessert—festive green color and refreshing mint flavor
Beautiful presentation with clean, distinct layers
Easy to prepare with common pantry ingredients
Customizable for any season with simple tweaks
Great make-ahead dessert that stores well
Kid-friendly and crowd-pleasing
Balanced flavor: Rich chocolate meets cool mint
No artificial mixes—all made from scratch
Ideal for parties, cookie trays, or gifting

ingredients

(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)

Brownie Batter:

1 cup unsalted butter, melted and browned
8 ounces semi-sweet chocolate chips
¾ cup granulated sugar
¾ cup brown sugar
4 large eggs
2 teaspoons vanilla extract
½ teaspoon salt
¾ cup all-purpose flour

Mint Frosting Layer:

½ cup unsalted butter, softened
2 cups powdered sugar
2 tablespoons milk
1 teaspoon peppermint extract
Green food coloring (as desired)

Chocolate Ganache Topping:

½ cup heavy cream
1 cup semi-sweet chocolate chips

directions

Prepare the brownies:

Preheat oven to 350°F (175°C). Line a 9×9-inch baking dish with parchment paper.
Place the chocolate chips in a large heat-safe bowl.
In a separate microwave-safe bowl, melt the butter. Pour over chocolate chips and let sit for 1–2 minutes. Whisk until smooth.
Add granulated sugar, brown sugar, eggs, and vanilla extract. Mix until well combined.
Stir in flour and salt until just incorporated.
Pour batter into the prepared baking dish and spread evenly.
Bake for 35–40 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs.
Let cool completely in the pan before adding frosting.

Make the mint frosting:

In a stand mixer or using a hand mixer, beat softened butter until creamy.
Gradually add powdered sugar, milk, peppermint extract, and green food coloring.
Beat until smooth and fluffy.
Spread evenly over cooled brownies.

Make the ganache topping:

In a small saucepan or microwave-safe bowl, heat heavy cream until hot (not boiling).
Pour over chocolate chips and let sit for 1 minute. Stir until smooth and glossy.
Carefully spread ganache over the mint layer.
Chill in the fridge for 15 minutes or until the ganache is fully set.

Slice and serve. Cut into 16 squares for clean, even servings.

Servings and timing

Servings: 16
Prep time: 15 minutes
Cook time: 40 minutes
Cooling time: 15 minutes
Total time: 1 hour 10 minutes

Variations

Add crushed candy canes on top for a festive crunch
Use white chocolate chips in the brownie base for contrast
Swap peppermint extract for mint extract for a milder flavor
Use gel food coloring for more vibrant green tones
Add chopped Andes mints into the ganache or frosting
Make it gluten-free using a 1:1 gluten-free flour blend
Use dark chocolate ganache for a bolder chocolate layer
Add espresso powder to the brownie batter for a mocha twist
Top with sprinkles or chocolate curls for visual flair

storage/reheating

Storage: Store in an airtight container in the refrigerator for up to 5 days
Freezing: Wrap individually and freeze for up to 2 months. Thaw in the refrigerator overnight
Reheating: Best served chilled or at room temperature. Do not microwave, as ganache may melt unevenly

FAQs

Can I use boxed brownie mix instead?

Yes, if you’re short on time, you can use a brownie mix for the base, but the homemade version adds superior flavor and texture.

How do I get clean layers when cutting?

Chill the brownies until fully set and use a sharp knife wiped clean between each cut.

Can I leave out the food coloring?

Absolutely. The green color is purely for visual appeal and doesn’t affect the flavor.

What type of chocolate is best for the ganache?

Semi-sweet chocolate is ideal for balance, but you can use dark chocolate for a richer finish.

Can I double this recipe?

Yes, double the ingredients and bake in a 9×13-inch pan. Adjust bake time slightly as needed.

What if I don’t have peppermint extract?

You can substitute with mint extract or a small amount of crushed mint candies for a similar flavor.

Can I use milk instead of cream for ganache?

Heavy cream is recommended for a smooth ganache. Milk can work, but the consistency may be thinner.

How do I know when the brownies are done baking?

Insert a toothpick in the center—if it comes out with moist crumbs (but not wet batter), they’re done.

Do I have to use both types of sugar in the brownie base?

Using both granulated and brown sugar provides moisture and a slight caramel note, but you can use just one if needed.

Can I frost warm brownies?

No—allow brownies to cool completely before frosting, or the frosting and ganache will melt and slide off.

Conclusion

Mint Chocolate Brownies are the perfect blend of rich chocolate and refreshing peppermint, layered for visual appeal and exceptional taste. Whether you’re baking for a holiday gathering, special celebration, or just a cozy weekend treat, these brownies deliver a bakery-quality experience at home. Simple to make and unforgettable to taste, they’re sure to become a seasonal favorite.