Description

Delight in these decadent Mint Brownies topped with a creamy mint buttercream and a luscious chocolate ganache. This easy-to-make recipe uses a boxed brownie mix enhanced with a fresh mint flavor in the buttercream, finished with a silky chocolate layer that melts in your mouth. Perfect for chocolate and mint lovers seeking a quick yet indulgent treat.

Ingredients

Scale

Brownie Base

1 box brownie mix (follow instructions on the box)
Eggs as directed on the brownie box
Oil as directed on the brownie box
Water as directed on the brownie box

Mint Buttercream

3/4 cup salted butter, softened
2 cups powdered sugar
1 teaspoon mint extract
1–2 drops green food coloring
1–2 tablespoons heavy whipping cream

Chocolate Ganache

2 cups semi-sweet chocolate chips
1 cup heavy whipping cream

Instructions

Preheat and prepare pan
Preheat your oven according to the brownie box instructions. Line an 8×8 inch square baking pan with parchment paper to prevent sticking and for easy removal.
Mix brownie batter
Open the brownie mix box and prepare the batter by mixing the eggs, oil, and water exactly as directed on the package for the perfect fudgy texture.
Bake the brownies
Pour the prepared brownie batter into the lined pan and bake until a toothpick inserted comes out mostly clean, indicating they are done.
Cool brownies
Remove the pan from the oven and allow the brownies to cool completely on a wire rack, still in the pan.
Make mint buttercream
In a mixing bowl, beat the softened salted butter until smooth and creamy. Gradually add the powdered sugar and continue mixing until fully combined and fluffy.
Add mint flavor and color
Mix in the mint extract, green food coloring to achieve desired hue, and 1 tablespoon heavy cream. Beat the buttercream until smooth and evenly colored.
Adjust buttercream consistency
Add an additional tablespoon of heavy cream to lighten the texture and beat again until the buttercream is fluffy and spreadable.
Spread buttercream
Evenly spread the prepared mint buttercream over the completely cooled brownies. Refrigerate the brownies briefly to allow the buttercream to firm up slightly.
Prepare chocolate ganache
Gently heat 1 cup of heavy whipping cream in a microwave-safe bowl until steaming but not boiling. Pour the hot cream over the semi-sweet chocolate chips and let sit for 3-4 minutes to soften the chocolate.
Mix ganache
Whisk the chocolate and cream mixture until smooth and glossy, creating a rich ganache.
Top brownies with ganache
Spread the chocolate ganache evenly over the chilled mint buttercream layer. Let the ganache set at room temperature for 45-60 minutes or refrigerate briefly for quicker setting.
Cut and serve
Using the parchment paper, lift the brownies from the pan and cut into 12 even squares. Serve and enjoy!

Notes

For an extra fudgy brownie, avoid overbaking and check the brownies with a toothpick just before the recommended time.
Adjust the green food coloring drops depending on how vibrant you want the mint buttercream.
The ganache can be made ahead and refrigerated; gently rewarm before spreading if it hardens too much.
Use high-quality semi-sweet chocolate chips for a richer ganache flavor.
Store the brownies in an airtight container in the refrigerator for up to 5 days.

Prep Time: 20 minutes
Cook Time: 40 minutes
Category: Dessert
Method: Baking
Cuisine: American

Keywords: mint brownies, buttercream frosting, chocolate ganache, easy brownies, dessert recipe, mint chocolate dessert