Peyton's Momma™

Minnesota based Family Lifestyle blog. Mother Daughter duo take on food, travel, and more.

Andes Mint Brownies (Easy Fudgy Mint Chocolate Brownies)

Andes Mint Brownies

If you love the combination of rich chocolate and cool mint, these Andes Mint Brownies are about to become one of your favorite desserts. They start with a homemade fudgy brownie that’s packed with chocolate flavor, then they’re topped with a smooth mint buttercream frosting and finished with chopped Andes Mints for the perfect bakery-style treat.

These brownies are a must-have for Christmas cookie trays, St. Patrick’s Day parties, holiday dessert tables, bake sales, or anytime you’re craving the classic chocolate and mint combination. The rich brownie base perfectly balances the light, creamy mint frosting, while the Andes Mint pieces add just the right amount of chocolatey crunch.

Although this recipe has two simple steps—baking the brownies and frosting them after they cool—the results are absolutely worth the extra time. Every bite is rich, fudgy, minty, and completely irresistible.

Why You’ll Love These Andes Mint Brownies

  • Rich homemade fudgy brownies
  • Creamy mint buttercream frosting
  • Loaded with chopped Andes Mints
  • Perfect chocolate and mint combination
  • Great for holidays and parties
  • Easy to make ahead
  • Bakery-quality dessert
  • Freezes beautifully

Ingredients

Brownie Base

  • 1 cup unsalted butter
  • 1 (12-ounce) bag semi-sweet chocolate chips
  • 4 large eggs, room temperature
  • 1 cup granulated sugar
  • 2 teaspoons vanilla extract
  • 1½ teaspoons baking powder
  • ¾ teaspoon salt
  • ¾ cup all-purpose flour

Mint Buttercream

Ingredient Notes

Semi-Sweet Chocolate Chips

Melting chocolate chips with butter creates a rich brownie that’s fudgy rather than cakey.

Room Temperature Eggs

Room temperature eggs mix more evenly into the batter, creating a smoother texture.

Mint Extract

A little goes a long way. Start with one teaspoon and adjust if you prefer a stronger mint flavor.

Andes Mints

These classic chocolate mint candies are the finishing touch that gives these brownies their signature flavor.

How to Make Andes Mint Brownies

Step 1: Prepare the Pan

Preheat your oven to 350°F.

Grease an 8×8-inch or 9×9-inch baking pan, or line it with parchment paper for easy removal.

Step 2: Melt the Chocolate

In a microwave-safe bowl, combine the butter and chocolate chips.

Microwave in 30-second intervals, stirring after each interval until completely melted and smooth.

Allow the chocolate mixture to cool to room temperature before continuing.

Tip: If the chocolate is too warm, it can cook the eggs.

Step 3: Make the Brownie Batter

In a large mixing bowl, beat the eggs and sugar until well combined.

Mix in the vanilla extract.

Slowly pour in the cooled chocolate mixture while mixing.

In a separate bowl, whisk together the flour, baking powder, and salt.

Gradually fold the dry ingredients into the chocolate mixture until just combined.

Do not overmix.

Step 4: Bake

Spread the batter evenly into the prepared baking pan.

Bake:

  • 9×9 pan: 30–35 minutes
  • 8×8 pan: 35–45 minutes

The brownies are done when a toothpick inserted near the center comes out with a few moist crumbs.

Allow the brownies to cool completely before frosting.

Step 5: Make the Mint Buttercream

Beat the softened butter until creamy.

Gradually add the powdered sugar.

Mix in the mint extract and a few drops of green food coloring.

Add the milk one tablespoon at a time until the frosting reaches a smooth, spreadable consistency.

Step 6: Decorate

Spread the mint buttercream evenly over the cooled brownies.

Sprinkle generously with chopped Andes Mints.

Slice into squares and serve.

Tips for Perfect Andes Mint Brownies

  • Allow the brownies to cool completely before frosting.
  • Don’t overbake if you prefer fudgy brownies.
  • Chill the brownies for cleaner slices.
  • Line the pan with parchment paper for easy removal.
  • Use a plastic knife for incredibly clean brownie cuts.

Variations

Triple Chocolate Andes Brownies

Add chocolate chunks to the brownie batter.

Peppermint Brownies

Replace the Andes Mints with crushed peppermint candies.

Chocolate Ganache Layer

Add a layer of chocolate ganache between the brownie and frosting.

Mint Chip Brownies

Fold chopped Andes Mints directly into the brownie batter.

Holiday Brownies

Decorate with green sprinkles for St. Patrick’s Day or red and green sprinkles for Christmas.

Storage

Store brownies in an airtight container for:

  • Room temperature: Up to 3 days
  • Refrigerator: Up to 1 week
  • Freezer: Up to 3 months

For the cleanest cuts, refrigerate the brownies for about 30 minutes before slicing.

Frequently Asked Questions

Can I use boxed brownie mix?

Yes! If you’re short on time, your favorite boxed brownie mix works well with the homemade mint frosting.

Can I make these ahead of time?

Absolutely! These brownies actually taste even better the next day after the flavors have had time to develop.

Can I use peppermint extract?

You can, but peppermint extract has a stronger flavor than mint extract. Start with about ½ teaspoon and adjust to taste.

Why did my frosting melt?

The brownies likely weren’t completely cooled before frosting. Be patient—cool brownies are the key to beautiful layers.

Can I freeze these brownies?

Yes! Freeze the frosted brownies in an airtight container for up to three months. Thaw overnight in the refrigerator before serving.

Decorating Ideas

Dress up your Andes Mint Brownies with:

These Andes Mint Brownies are everything a chocolate lover could ask for—rich, fudgy brownies topped with creamy mint frosting and finished with crunchy Andes Mints. They’re the perfect dessert for anyone who loves the timeless combination of chocolate and mint.

Whether you’re making them for Christmas, St. Patrick’s Day, holiday cookie trays, bake sales, or simply satisfying a chocolate craving, these brownies are guaranteed to be one of the first desserts to disappear. Make a batch once, and they’ll quickly earn a permanent spot in your dessert rotation.

Check out our other desserts too.

 

Print Pin

Andes Mint Brownies

Create these delicious Andes Mint Brownies from scratch.
Course Dessert
Cuisine American
Keyword Andes Mint, Brownies

Ingredients

Brownie Base

  • 1 C Butter, unsalted room temp
  • 1 bag Semi-Sweet Chips (1.5C or 12 oz)
  • 4 Eggs
  • 1 C Sugar
  • 2 tsp Vanilla Extract
  • 1.5 tsp Baking Powder
  • 3/4 tsp Salt
  • 3/4 C Flour

Mint Frosting

  • 3/4 C Butter, unslated room temp
  • 2 C Powdered Sugar
  • 2 TBSP Milk
  • 1 tsp Mint Extract
  • Green Food Coloring
  • Andes Mint, chopped

Instructions

  • This recipe is really a two-step process. You will make the brownies and then they have to cool completely before you can frost them. If you frost the brownies while they are warm your buttercream will melt.  I find making the brownies either the night before or in the morning works best. Then I frost them the next day or later that evening. 
    You will want to use a 9x9 or 8x8 pan for this recipe. Either spray your pan with non-stick spray, grease it or use parchment paper to prep the pan. 
    Once your pan is prepped, move the rack in the oven to the center and preheat the oven to 350F.
    In a microwave-safe bowl, medium size, place the butter and chocolate chips. Heat in the microwave in 30-second intervals stirring in between until the butter is melted and the chocolate is smooth. It took me about 90 seconds total. You can also use a double boiler method and do this over the stove if you prefer.  Once the chocolate and butter are melted and combined set aside to cool. This needs to reach room temperature before we can move on. Rushing this step could cause your eggs to cook while you are mixing them. 
    In a large bowl, combine the eggs and sugar. You will need to mix them together and well combine. Using a stand mixing works best but you can use a whisk or hand mixer too. 
    Next, add in the eggs and vanilla extract. Mix well. 
    Slowly mix in the cooled chocolate mixture. 
    In another bowl combine the flour, salt, and baking powder. Mix together. 
    Slowly add the flour mixture to the chocolate mixture and mix until just combined.
    Pour the brownie batter into your prepared pan. 
    Bake at 350F for 30-45 minutes depending on the size of the pan. Shorter timeframe for 9x9. You will know the brownies are completely baked when you can insert a toothpick into the center and it comes out clean. 
    Once the brownies are finished baking, remove them from the oven and let cool to room temperature. 
    After the brownies have cooled to room temperature prepare the mint frosting. 
    In a stand mixer, cream together the butter and powder sugar. 
    Add in the mint extract and green food coloring. 
    When the mixture starts to stiffen up use the milk to help achieve your preferred consistency. 
    Frost the brownies with the mint buttercream. 
    Sprinkle Andes mints on top. 
    Enjoy!
    Keep leftovers in an air-tight container in the fridge. When you are ready to enjoy, set the brownies on the counter for a few minutes to bring the frosting back to room temperature and enjoy!

About Shanna

Shanna started writing shortly after her daughter was born. She's written for various outlets over the years. When she's not writing about her adventures with her daughter, she's out having adventures!