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Get ready to dive into a slice of minty heaven with these Fudgy Mint Brownies! They’ve got a rich, chocolatey brownie base topped with a cool, creamy mint buttercream, and finished off with a silky layer of chocolate ganache. It’s the ultimate treat for anyone who loves that classic chocolate-mint combo!

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Below you will find tips, tricks and helpful hints for making this recipe including step by step instructions with pictures. If you would like to go directly to the recipe, scroll down to the recipe card or tap “Jump to Recipe” at the top of the page.

Why You’ll Love These Brownies

If you love the combo of chocolate and mint, these Fudgy Mint Brownies are going to be your new favorite treat! The rich, fudgy brownie layer gives you all the chocolate goodness, while the creamy mint buttercream adds a refreshing kick.

And to top it all off? A smooth layer of chocolate ganache that melts in your mouth. They’re perfect for holidays, parties, or whenever you’re craving something sweet with a minty twist. Plus, they look as amazing as they taste, so you’ll definitely impress anyone you share them with—if you decide to share, that is! You might also want to try these Bailey’s Irish Cream Brownies!

Mint Brownie Ingredients

*Ingredient amounts are located in the recipe card at the end of this post.

• Butter: This is the foundation for both the brownie batter and the chocolate ganache, providing richness and moisture.
• Cocoa Powder: Adds deep chocolate flavor to the brownie base.
• Eggs: These are key for achieving a chewy texture in your fudgy brownies.
• Sugar: Ensures sweetness perfectly balances the cocoa’s bitterness.
• Vanilla Extract: Enhances the chocolate flavor, giving an aromatic depth.
• All-Purpose Flour: This gives structure to your delicious brownies.
• Salt: Salt is essential; it sharpens the chocolate taste.
• Baking Soda: Helps the brownie rise slightly for that signature fudgy texture

• Mint Frosting Ingredients Include: Additional butter, powdered sugar, milk, and peppermint extract for that creamy mint layer
• Chocolate Ganache Layer Calls For: More butter and semi-sweet chocolate chips, creating a glossy finish

How to Make Perfect Mint Brownies

[Step 1] Brownies: Melt 1 cup of butter in a small saucepan over medium heat. Remove from heat and stir in the cocoa powder. Set aside.

[Step 2] In the bowl of a stand mixer, beat the eggs then gradually add the sugar. Add the vanilla and chocolate mixture, then stir until smooth.

​[Step 3] In a separate bowl, whisk the flour, salt, and baking soda. Add the dry ingredients to the wet ingredients. 

[Step 4] Pour the batter into a 9×13 baking dish that has been sprayed with nonstick spray or lined with parchment paper and bake at 350 degrees for 30 minutes or until a toothpick inserted comes out clean. Remove from the oven and cool completely before adding the frosting.

[Step 5] Mint Frosting: Beat the butter in a mixing bowl until light and fluffy. Mix in the powdered sugar, a little at a time. Add the peppermint extract, milk, and food coloring to the frosting and mix for 1-2 minutes. Frost the cooled brownies and place in the refrigerator to set for at least one hour.

[Step 6] Chocolate Layer: Melt the butter and chocolate chips in a medium saucepan over medium-low heat. When the chocolate has melted, pour it over the mint frosting layer and carefully spread with a knife or offset spatula. Place the brownies back in the refrigerator for at least one hour to overnight.

[Step 7] When the chocolate has set, remove and cut into bars.

Helpful Kitchen Tools

• ​Stand Mixer or Electric Mixer
• Mixing Bowls
• 9×13 Baking Dish
• Offset Spatula
• Wire Cooling Rack

How to Store Leftover Brownies

To keep your mint brownies fresh and fudgy, store any leftovers in an airtight container. You can leave them at room temperature for up to 3 days or pop them in the fridge for a slightly longer shelf life of about a week.

If you want to save some for later, wrap individual pieces in plastic wrap and freeze them for up to 2 months. Just let them thaw at room temp or give them a quick zap in the microwave when you’re ready to enjoy that minty, chocolatey goodness again!

Baking Tips & Tricks

• Use Quality Chocolate: For the best fudgy texture, go for high-quality cocoa powder and chocolate chips in the brownie layer.
• Don’t Overbake: Keep a close eye on the brownies and take them out when a toothpick comes out with moist crumbs. Overbaking can lead to dry brownies.
• Chill the Brownies: Let the brownies cool completely before adding the mint buttercream layer. You can even pop them in the fridge to speed up the process.
• Room Temperature Ingredients: Make sure your butter and cream cheese are at room temp for a smooth mint buttercream.
• Add Peppermint Extract Gradually: A little goes a long way! Start with a small amount and taste as you go to get the perfect minty flavor without it being overpowering.
• Smooth Ganache Layer: Pour the chocolate ganache over the buttercream and gently spread it with a spatula for a clean, glossy finish.
• Chill for Clean Slices: Refrigerate the brownies before cutting for clean, even slices without smudging the layers.
• Customize Your Mint: Use green food coloring in the mint buttercream for a classic look, or leave it white for a more natural vibe.
• Add a Crunch: For extra texture, sprinkle crushed peppermint candies or Andes mints on top of the ganache before it sets.

Frequently Asked Questions

• What if my brownies are too cakey and I prefer them fudgier? To achieve fudgier mint brownies, reduce the amount of flour to 1 and 1/4 cups and ensure not to overbake them. Baking for a shorter period encourages a denser texture, which is key for fudgy brownies. Always use a toothpick to check doneness; it should come out with some moist crumbs attached.
• My chocolate ganache is too runny; how can I fix it? If your chocolate ganache turns out runny, chill it in the refrigerator for about 30 minutes. As it cools, it thickens. Stir every 10 minutes to check consistency. Once it reaches a spreadable thickness, use it to coat the mint layer. The key is patience to achieve that luxurious, thick layer of chocolate ganache.
• Is there a way to make these brownies gluten-free? Yes, you can easily adapt this recipe to be gluten-free by substituting the all-purpose flour for a gluten-free flour blend. Look for one that can be used as a 1:1 replacement. Also, verify that your cocoa powder and chocolate chips are gluten-free to ensure the final product is safe for those with gluten sensitivities.

More Brownies to Try:

• Cake Mix Brownies
• Homemade Cosmic Brownies
• White Chocolate Brownies
• Red Velvet Brownies

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