Chocolate Mint Brownie Squares

Name: Chocolate Mint Brownie Squares
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Yield: 16 squares
Ingredients: 1/2 cup unsalted butter; 1 cup granulated sugar; 2 large eggs; 1 teaspoon vanilla extract; 1/3 cup unsweetened cocoa powder; 1/2 cup all-purpose flour; 1/4 teaspoon salt; 1/4 teaspoon baking powder; 1/2 cup unsalted butter, softened; 2 cups powdered sugar; 2 tablespoons milk; 1 teaspoon peppermint extract; Green food coloring (optional); Crushed mint candies or chocolate chips

Highlighted under: Easy Desserts Inspiration

I’ve always been a huge fan of chocolate and mint, and these Chocolate Mint Brownie Squares are the perfect combination for my taste buds. Each bite is a delightful mix of rich chocolate brownie and refreshing mint frosting, which makes it an irresistible treat. What I love about this recipe is how simple it is to prepare, but the result feels special and indulgent. Whether I’m making them for a party or just to satisfy a craving, these squares never disappoint.

Created by

Nicola Fairchild

Last updated on 2026-01-13T02:19:35.477Z

Making these Chocolate Mint Brownie Squares became a weekend tradition for my family. Each time I bake them, I’m reminded of the joy they bring. The process is so straightforward; I often get my kids involved too. It’s amazing to see their excitement as they watch the brownies rise in the oven and the mint frosting come together.

One trick I learned is to sprinkle a little extra crushed mint or chocolate chips on top before baking. It not only enhances the flavor but also gives the finished product a delightful look. This simple step has made my brownies the talk of the town!

Why You'll Love These Brownies
Intensely chocolaty goodness with a refreshing mint twist
Soft and chewy texture that melts in your mouth
Perfect for sharing with friends and family or keeping all to yourself

Mastering the Brownie Base

The base of these Chocolate Mint Brownie Squares is a rich, fudgy brownie that balances perfectly with the mint frosting. When melting the butter, do so over low heat to prevent browning, which could alter the flavor. Stirring in the sugar while the butter is still warm helps dissolve it better, leading to a smoother texture. You’ll know the batter is ready when it's thick and glossy, indicating that you've blended it enough to develop the right fudgy consistency.

Be mindful not to overmix the brownie batter after adding the dry ingredients. Overmixing can incorporate too much air, making the brownies cakey rather than dense and chewy. Instead, mix just until combined, leaving a few small streaks of flour. During baking, check for doneness by inserting a toothpick; slight moist crumbs should cling to it for perfect brownies. Let them cool completely in the pan to ensure cutting clean squares later.

Crafting the Perfect Mint Frosting

Creating the mint frosting is crucial for achieving that refreshing flavor contrast with the brownies. Using softened butter is key; it allows for easy incorporation with powdered sugar, leading to a smooth and creamy texture. If your frosting feels too thick after adding the sugar, gradually mix in a bit more milk, one teaspoon at a time, until it reaches a spreadable consistency. Alternatively, for a thicker frosting, simply add more powdered sugar until desired thickness is achieved.

To achieve that vibrant mint hue, optional green food coloring can enhance the visual appeal, especially if you're serving these at a festive event. Start with a drop and mix well; you can always add more if needed. Mix the peppermint extract gradually for optimal flavor—start with the recommended amount and add more if you desire a stronger mint taste. Remember, you can always adjust flavors to match your preference without overpowering the brownie’s rich chocolate base.

Ingredients

Gather these items to create your Chocolate Mint Brownie Squares:

For the Brownies

1/2 cup unsalted butter
1 cup granulated sugar
2 large eggs
1 teaspoon vanilla extract
1/3 cup unsweetened cocoa powder
1/2 cup all-purpose flour
1/4 teaspoon salt
1/4 teaspoon baking powder

For the Mint Frosting

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

For Garnish

Crushed mint candies or chocolate chips

Make sure to measure your ingredients accurately for best results!

Instructions

Follow these steps to make delicious Chocolate Mint Brownie Squares:

Prepare the Brownies

Preheat your oven to 350°F (175°C). Grease and flour an 8-inch square baking pan. In a small saucepan over low heat, melt the butter. Stir in sugar, eggs, and vanilla until well combined. In a separate bowl, mix the cocoa, flour, salt, and baking powder. Gradually add to the butter mixture, blending well. Pour the batter into the prepared pan and bake for 30 minutes.

Make the Mint Frosting

While the brownies are baking, prepare the mint frosting. In a mixing bowl, beat the softened butter until creamy. Gradually add the powdered sugar and mix until smooth. Stir in milk, peppermint extract, and food coloring until you reach your desired minty flavor and color.

Frost and Serve

Once the brownies are cool, spread the mint frosting evenly on top. Sprinkle crushed mint candies or chocolate chips over the frosting for added texture. Cut into squares and enjoy!

Store any leftovers in an airtight container to maintain freshness.

Pro Tips

Try adding a pinch of sea salt on top of the frosting for a balanced flavor contrast with the sweetness.

Serving and Storage Tips

Once cut into squares, these brownies can be stored in an airtight container at room temperature for up to three days. For longer storage, consider refrigerating them, which can keep them fresh for up to a week. However, if you prefer a softer texture, let them come to room temperature before serving. If you plan on freezing them, wrap individual squares tightly in plastic wrap and then place them in a freezer-safe bag; they can last up to three months.

For an elegant presentation, serve these Brownie Squares on a dessert platter with additional crushed mint candies sprinkled around them. You might also consider pairing them with a scoop of vanilla ice cream or a drizzle of chocolate sauce for an indulgent twist. If you want to make this a layered treat, try incorporating a layer of ganache beneath the mint frosting for an extra decadent experience.

Variations and Customizations

Feel free to get creative with these brownies by incorporating different mix-ins. Instead of crushed mint candies, try adding chopped walnuts or dark chocolate chunks for added texture and depth. You could also experiment with different extracts, such as orange or almond, in place of peppermint if you're in the mood for a unique flavor profile. Just keep in mind that any strong flavors should enhance rather than overwhelm the mint and chocolate.

If you're looking to make these brownies gluten-free, you can easily swap in a gluten-free flour blend for the all-purpose flour. Most blends work well for this purpose; just look for one that includes xanthan gum to mimic the elasticity that traditional flours provide. Additionally, using dairy-free butter and alternative milk options can make this recipe suitable for a vegan audience, ensuring everyone can enjoy these delicious treats!

Questions About Recipes

→ Can I use a different frosting flavor?

Absolutely! Feel free to experiment with vanilla or chocolate frosting for a different twist.

→ How do I store the brownies?

Store them in an airtight container at room temperature for up to 4 days, or in the fridge for a week.

→ Can I freeze the brownies?

Yes, you can freeze the brownies for up to 3 months. Just be sure to wrap them tightly!

→ What can I use instead of eggs?

You can substitute eggs with applesauce or a commercial egg replacer for a vegan option.