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Decadent fudgy Mint Brownies are topped with a peppermint buttercream frosting and a heavenly dark chocolate ganache. I may be biased, but you won’t find a better brownie recipe out there. And, bonus? They’re way easier to make than they look!

Made this recipe with absolute success. My mint layer was thinner than shown but still delivered a great mint flavour. It sliced extremely well after reading the tips in notes. Loved by all who tried it. Added to my all time favourites and will be made regularly.
Mint Brownies
These multilayer mint brownies are like the culinary equivalent of a wink. Cool, confident, and effortlessly irresistible. Basically, it’s like shooting a 90s Mentos commercial in my kitchen, but I’m not the star. The brownies are. And, I’m ok with that, you know? I got used to it while developing my favorite Andes mint brownies. They also steal the show!
You might not believe me when I tell you how easy it is to put together each layer of these brownies. And, it does take a few extra steps, but these are worth the effort! These are very cool looking brownies, which makes them perfect for any gathering where you want a really impressive dessert.
Mint Chocolate Brownies
These mint chocolate brownies are a tiny bit of extra work with three layers, but every layer is absolutely worth making from scratch. The base barely takes longer than a box mix, because you just whisk everything together in one bowl, pour into the pan, and bake.
The green mint frosting for brownies can be whipped together while they cool from the oven. And, since it uses food coloring, you could also choose to make the frosting pink if you wanted to highlight the peppermint flavor. It also makes this a fun treat on Christmas or Valentine’s Day.

Mint Brownie Recipe
Don’t be intimidated by the chocolate ganache in this mint brownie recipe. It’s even easier to make than the frosting. Just chop up the chocolate and then pour hot cream over it, and whisk till smooth.
Plus, ganache is one of those things what once you learn to master making it in the kitchen, it feels like leveling up your game. And, when you have mastered ganache you’ll start finding all sorts of new ways to use it. It’s that good!
I prefer to use bittersweet chocolate for the ganache on these brownies. Dark, dark chocolate is a fabulous complement for the sweet mint frosting. Each layer of these brownies is great on its own, but together? They are incredible.
Do You Need to Refrigerate Brownies with Ganache?
I get this question a lot. The truth is that there are two answers. The proper answer is that ganache is made with heavy cream, and you should keep it refrigerated so that it does not spoil.
The other answer acknowledges that there are a lot of people alive and well today who ate leftover desserts that sat out, topped with chocolate ganache. If you’re a safety first person, put it in the fridge. If you forgot to refrigerate them, I’ll let you decide.

Tips for Slicing Brownies
If you’ve ever tried to slice a layered dessert so that they don’t smear together, then you know the challenge is real. Here are my best tips for slicing brownies to get neat squares with crisp and clean lines.
- Use parchment paper and let the edges hang over the sides of the pan. That way you can lift the brownies out using the paper to set them on a cutting board.
- A large knife will give you straighter lines. Don’t drag the knife through the brownies. Instead, press the knife straight down to get the cleanest cuts.
- Rinse and dry the knife between every cut. This is a must for getting picture-perfect lines. Don’t smear the ganache into the mint buttercream.
- Give yourself some grace with your chocolate. These chocolate mint brownies are just like life. We can’t get exactly what we want every time.
Frosted Brownies
If you like to level up your brownies with a magnificent topping or two, then you have got to check out some of these other frosted brownies recipes!
Mint oreo brownies are stuffed with mint Oreos, topped with mint frosting, and sprinkled with more crushed Oreo’s and a gooey fudge drizzle. It’s mint-ception, and you’re going to love every last bite. And, strawberry frosted brownies are a fudgy, decadent treat that is balanced with a slightly tangy, strawberry cream cheese frosting.
The sweet fluff of mini marshmallows and the crunch of slivered almonds make these decadent rocky road brownies an irresistible treat. You’ll find yourself coming back to the pan for just one more (more than once if you’re like me).
And, I can’t not share these cookie dough brownies, topped with a layer of edible cookie dough and then drizzled with chocolate fudge sauce. You can kick them up another notch with a drizzle of homemade Nutella hot fudge, too.

Mint Brownies with Chocolate Ganache
Ingredients
Brownie Ingredients
- ½ cup butter
- ½ cup oil
- 2 cups granulated sugar
- 4 eggs
- 2 teaspoons vanilla
- ¼ teaspoon mint extract
- ⅔ cup cocoa powder
- 1 cup all purpose flour
- ½ teaspoon salt
- ½ teaspoon baking powder
Mint Buttercream Ingredients
- ½ cup butter softened
- 1¾ cups powdered sugar
- 1-2 tablespoons heavy cream or milk
- ¼ to ½ teaspoon peppermint extract adjust to taste
- a few drops green food coloring
Chocolate Ganache Ingredients
- 1 cup heavy cream
- 8 ounces bittersweet chocolate
Instructions
To Make The Brownies
- Preheat oven to 350°F. Grease and flour a 9 x 13 inch pan or line with parchment paper. Melt the butter in a large microwave-safe bowl. Whisk in the oil, sugar, eggs, vanilla, and mint extracts. Add the cocoa, flour, salt, and baking powder. Mix well to combine.
- Spread in the prepared pan and bake for 22-25 minutes or until an inserted toothpick comes out with a few crumbs. Let cool completely.
To Make The Mint Buttercream
- To make the mint buttercream layer, beat the butter in a stand mixer for 1-2 minutes, beat in the powdered sugar. Add enough of the milk or cream to be a spreadable consistency and the mint extract to your tastes. Spread on top of completely cooled brownies and refrigerate.
To Make The Ganache
- For the chocolate ganache, finely chop the chocolate and place in a heat proof bowl. In a heavy saucepan, bring the heavy cream to a simmer. Do not let it boil. Pour the whipping cream over the chopped chocolate and whisk until smooth.
- Pour the ganache over the mint layer and refrigerate until set. Cut into squares.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
{originally published 2/24/15 – recipe notes and photos updated 12/4/25}















I made this the other night for a small dinner party so I only did half a batch. It was a big hit, so yummy!! I did read the comments and so when making I halved everything but the butter cream frosting and it was perfect. Will be making this again, loved it!!
I made the chocolate ganache mint brownies today & they are delicious! I followed the recipe EXACTLY as written. No problems. I chuckled at the reviews that complained about not enough buttercream or too much ganache! Obviously these reviewers are not experienced bakers & should stick to box mixes. The all they can handle!
What type of oil did you use? As I rarely make desserts I have only olive on hand. But I certainly do want to make this recipe!
I usually use canola or avocado. But vegetable oil or olive oil would work. As long as you dont mind the taste.
These look DIVINE! Love that chocolate ganache!
I have it on good authority that Santa will be getting a big plate of these delicious brownies on Christmas Eve 😉
These were amazing! Great recipe!
Yum, these taste just like my grandpa’s beloved Andes mints!
This just made my mint and chocolate loving dreams come true. So so good!
I made this tecipe as is. I found that the buttercream layer was thin and the ganache layer very thick. Next time I will cut in half.
Just made these and there is too much ganache and not enough buttercream. They taste great, but I’ll make half as much ganache next time. These are just too sweet for me.