If you love the irresistible combination of rich chocolate and refreshing mint, these Classic Mint Chocolate Brownies are the ultimate dessert. They feature three decadent layers: thick fudgy chocolate brownies, creamy peppermint frosting, and a silky chocolate ganache topping.
The result is a bakery-style dessert that looks impressive but is surprisingly simple to make. These brownies are perfect for St. Patrick’s Day treats, holiday dessert platters, potlucks, or anytime you crave a chocolate mint dessert.
Each bite delivers a balance of deep chocolate flavor, cool mint sweetness, and smooth chocolate topping, making them one of the most loved brownie variations.
table of contents
Recipe Overview
Prep Time: 1 hour
Bake Time: 35 minutes
Chill Time: 4 hours
Total Time: ~6 hours
Yield: 24–30 brownies
Course: Dessert
Cuisine: American
Ingredients
Brownie Layer
- 1 cup (226 g) unsalted butter
- 8 oz semi-sweet chocolate, chopped
- 1½ cups granulated sugar
- ½ cup packed brown sugar
- 4 large eggs
- 2 teaspoons vanilla extract
- ½ teaspoon salt
- ½ cup + 3 tablespoons all-purpose flour
- ¼ cup unsweetened cocoa powder
Mint Frosting Layer
- ½ cup butter, softened
- 2 cups powdered sugar
- 2 tablespoons milk
- 1¼ teaspoons peppermint extract
- Optional: 1 drop green food coloring
Chocolate Ganache Layer
- ½ cup butter
- 1 heaping cup semi-sweet chocolate chips
Instructions
1️⃣ Make the Brownie Batter
Melt butter and chopped chocolate in a saucepan over medium heat, stirring until smooth.
Let cool for 10 minutes.
2️⃣ Prepare Baking Pan
Preheat oven to 350°F (177°C).
Line a 9×13-inch baking pan with parchment paper.
3️⃣ Mix Batter
Whisk sugars into the melted chocolate mixture.
Add eggs one at a time, mixing well after each addition.
Stir in vanilla.
Fold in:
- Salt
- Flour
- Cocoa powder
4️⃣ Bake Brownies
Pour batter into prepared pan.
Bake 35–36 minutes, until edges pull away slightly.
Allow brownies to cool completely.
Mint Frosting Layer
Beat butter until creamy.
Add powdered sugar and milk.
Mix until smooth.
Add peppermint extract and optional green food coloring.
Spread evenly over cooled brownies.
Refrigerate 1 hour to set.
Chocolate Ganache Layer
Melt butter and chocolate chips until smooth.
Pour over mint frosting.
Spread evenly.
Chill 1–2 hours until set.
Slice and Serve
Remove brownies from pan.
Use a sharp knife wiped clean between cuts for neat squares.
Pro Tips
✔ Use peppermint extract (not mint extract) for authentic flavor
✔ Chill between layers for clean separation
✔ Use high-quality chocolate for best taste
✔ Wipe knife between slices for perfect squares
Flavor Variations
Mint Oreo Brownies
Add crushed Oreo cookies to brownie batter.
Dark Chocolate Mint Brownies
Use 70% dark chocolate for richer flavor.
Peppermint Bark Brownies
Sprinkle crushed candy canes on top.
Storage
Refrigerator:
Store covered up to 5 days.
Freezer:
Freeze brownies up to 3 months.
Disclaimer
Nutritional information is estimated and may vary depending on ingredients used.
Classic Mint Chocolate Brownies
Ingredients
Equipment
Method
- Preheat oven to 350°F (175°C) and line a baking pan with parchment paper.
- Melt butter and semi-sweet chocolate together in a saucepan or microwave until smooth.
- In a bowl, whisk together sugar and eggs until smooth.
- Stir the melted chocolate mixture into the egg mixture.
- Fold in flour and cocoa powder until just combined.
- Pour batter into the prepared pan and bake for about 35 minutes.
- Allow brownies to cool, then spread peppermint frosting made with powdered sugar and peppermint extract over the top.
- Top with a melted chocolate layer or ganache and chill before slicing into squares.
Nutrition
Notes
Tried this recipe?
Let us know how it was!Conclusion
Rich, decadent, and beautifully layered, Classic Mint Chocolate Brownies are a dessert that never fails to impress. The combination of fudgy chocolate brownies, cool peppermint frosting, and silky chocolate topping creates a dessert that’s perfect for holiday celebrations, parties, or anytime you crave chocolate mint goodness.
Once you try these brownies, they’re guaranteed to become a favorite in your baking collection.