Description

There’s something undeniably nostalgic about the pairing of mint and chocolate. For many, the flavor combination brings back memories of peppermint bark at Christmas, mint chocolate chip ice cream on summer afternoons, or the familiar green foil of after-dinner mints passed around at family gatherings. Mint chocolate brownies take all of that comfort and wrap it in layers of deep chocolate richness and cool mint frosting.

This recipe became a family favorite when my sister and I first baked it for a winter bake sale in middle school. We were aiming to recreate something “fancy,” and what we ended up with was a decadent three-layer masterpiece: dense chocolate brownie, creamy mint filling, and a smooth chocolate ganache on top. It was love at first bite—and the entire tray sold out before lunch. Ever since, these brownies have been a go-to for holiday cookie boxes, birthday parties, and cozy snow days when only chocolate will do.

Whether you make them for St. Patrick’s Day, Christmas, or just because you need something sweet and special, mint chocolate brownies strike the perfect balance of refreshing and indulgent.

Ingredients

Scale

For the Brownie Base:
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 Layer:
1/4 cup unsalted butter, softened
1 cup powdered sugar
1 tablespoon milk
1/2 teaspoon mint extract (not peppermint)
1–2 drops green food coloring (optional)
For the Chocolate Ganache Topping:
1/2 cup semi-sweet chocolate chips
2 tablespoons butter

Instructions

Step 1: Make the brownie base
Preheat your oven to 350°F (175°C). Grease or line an 8×8-inch square baking pan with parchment paper. In a medium saucepan, melt the butter over low heat. Remove from heat and stir in sugar, eggs, and vanilla. Beat until smooth.
Sift in the cocoa powder, flour, salt, and baking powder. Stir until fully combined. Pour the batter into the prepared pan and spread evenly. Bake for 20–25 minutes, or until a toothpick inserted in the center comes out with moist crumbs. Let the brownies cool completely in the pan before adding the next layer.
Step 2: Make the mint frosting
In a mixing bowl, beat the softened butter until fluffy. Add the powdered sugar, milk, mint extract, and food coloring (if using). Mix until smooth and creamy. Adjust with a few more drops of milk if needed to get a spreadable consistency.
Spread the mint frosting evenly over the cooled brownie base. Refrigerate for 20 minutes to let it firm up.
Step 3: Add the chocolate ganache topping
In a microwave-safe bowl, combine the chocolate chips and butter. Microwave in 20-second intervals, stirring between each, until smooth and melted. Let cool slightly, then pour over the mint layer and gently spread with an offset spatula or the back of a spoon.
Return the pan to the fridge and chill until the ganache is set—about 30–45 minutes.
Step 4: Slice and serve
For clean cuts, use a sharp knife warmed under hot water and wiped dry. Cut into 16 squares and serve chilled or at room temperature.

Notes

These mint chocolate brownies are best made a day ahead to let the flavors meld. Store them in the fridge for a firmer texture or at room temperature for softer bites.

Nutrition

Calories: 210