Mint Chocolate Chip Brownies with Green Swirl Frosting
Mint Chocolate Chip Brownies with Green Swirl Frosting are not just brownies; they are a decadent chocolate experience infused with refreshing mint flavor that leaves every bite blissfully satisfying. Picture dense, fudgy brownies studded with creamy mint chocolate chips, finally topped with an irresistibly vibrant green frosting that brings an extra layer of charm to this classic dessert. They’re perfect for sharing at parties, holiday gatherings, or simply indulging in during a cozy night at home.
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I first stumbled upon this delightful combination during a friend’s birthday celebration, where the aroma of freshly baked brownies mingled with hints of peppermint wafting through the air instantly caught my attention. As I took my first bite, I knew I had to recreate this masterpiece. The rich cocoa base melds flawlessly with the cool minty frosting—making these Mint Chocolate Chip Brownies perfect for both chocolate lovers and mint enthusiasts. I can hardly wait for you to experience the joy of making these brownies from scratch!
Why You’ll Love This Recipe
- Simple & Quick: With just a 20-minute prep time and a total of 60 minutes to set, you can enjoy fresh brownies without spending all day in the kitchen.
- Irresistible Flavor: The combination of rich chocolate and refreshing mint creates a perfect flavor profile that’s hard to resist.
- Eye-Catching Appeal: The bright green swirl frosting not only looks charming but also adds a fun touch that impresses everyone.
- Flexible Serving: Ideal for any occasion! Whether it’s a birthday party, holiday gathering, or a spontaneous treat, these brownies shine.
- Diet-Friendly Options: Can be made with gluten-free flour or dairy-free substitutes to accommodate various dietary preferences.

Ingredients You’ll Need
- ½ cup unsalted butter: Provides moisture and richness to the brownies. To substitute, use vegan butter or coconut oil.
- ¼ cup dark chocolate unsweetened cocoa powder: This deepens the chocolate flavor. Opt for a high-quality cocoa for the best results.
- ½ cup vegetable oil: Creates a fudgy texture. Can be swapped with melted coconut oil if preferred.
- 2 cups granulated sugar: Sweetens the brownies beautifully. Brown sugar can also be used for added moisture.
- 2 large eggs: Bind the ingredients together. If vegan, use flax eggs as a substitute.
- ¼ cup buttermilk: Adds moisture and tang. You can DIY buttermilk by adding 1 tablespoon of vinegar to ¼ cup of milk.
- 2 cups all-purpose flour: Gives structure to the brownies. For a gluten-free option, replace it with a gluten-free 1:1 baking blend.
- 1 teaspoon baking soda: Helps the brownies rise. Ensure it’s fresh for the best lift.
- ½ teaspoon kosher salt: Enhances flavor; fine sea salt works too.
- 1 cup Andes crème de menthe baking chips: Infuses delightful minty flavor. You can use chocolate chips or chopped mint candies as alternatives.
- ½ cup unsalted butter (for frosting): Adds a creamy base to your frosting. Softened before mixing for a smoother texture.
- ½ cup milk: Adds creaminess to the frosting. Use any milk—dairy or non-dairy.
- 4 cups powdered sugar: For sweetness and to create a fluffy frosting. Avoid using granulated sugar for a smoother texture.
- ½ teaspoon peppermint extract: Boosts the mint flavor in the frosting. Adjust to taste, but avoid overdoing it.
- 1 drop green food coloring: Just a tiny bit makes the frosting visually pop. Use gel coloring for a more vibrant hue.
- ¾ cup mini semi-sweet chocolate chips: Fold these in for another layer of chocolatey goodness, and feel free to substitute with dark chocolate chips if desired.
How to Make Mint Chocolate Chip Brownies with Green Swirl Frosting
Preheat Oven: Start by preheating your oven to 400 degrees F. Line a 13×9 inch baking dish with parchment paper, leaving some overhang on the sides for easy removal later.
Combine Butter, Cocoa, and Oil: In a small saucepan over medium-high heat, combine ½ cup unsalted butter, ¼ cup dark chocolate unsweetened cocoa powder, and ½ cup vegetable oil. Bring it to a gentle boil while whisking continuously, then promptly remove from heat.
Mix Wet Ingredients: In a large mixing bowl, combine 2 cups granulated sugar, 2 large eggs, and ¼ cup buttermilk. Slowly pour in the hot butter mixture while stirring gently—this prevents the eggs from scrambling.
Add Dry Ingredients: Sift in 2 cups all-purpose flour, 1 teaspoon baking soda, and ½ teaspoon kosher salt. Stir together just until combined—this is key to keeping the brownies fudgy! Finally, fold in 1 cup Andes crème de menthe baking chips.
Bake the Brownies: Pour the brownie batter into the prepared dish, smoothing it out evenly. Bake in the preheated oven for 20 minutes, or until the edges are just set and a toothpick inserted in the center comes out with a few moist crumbs.
Cool and Prepare Frosting: Once baked, remove them from the oven and let them cool completely. While the brownies cool, let’s whip up the frosting. In a large mixing bowl, beat ½ cup softened unsalted butter with an electric mixer for about 3-4 minutes until it’s light and pale in color.
Mix Frosting: To the butter, add ½ cup milk, 4 cups powdered sugar, ½ teaspoon peppermint extract, and 1 drop of green food coloring. Mix on low until incorporated, then increase the speed and beat for another 3-5 minutes until the frosting is light and fluffy. If the frosting is too thick, add a splash of milk to reach your desired consistency. Gently fold in ¾ cup mini semi-sweet chocolate chips.
Frost the Brownies: Spread the frosting evenly over the cooled brownies, making it as swirly as your heart desires. Place them in the refrigerator for about 2 hours to let the frosting set, which will make cutting them easier.
Savor the Treat: Once set, remove the brownies from the fridge, lift them from the pan using the parchment, and slice them into squares. Enjoy your sweet minty masterpiece!

Storing & Reheating
Store leftover brownies at room temperature in an airtight container for up to 3 days. If you’d like to keep them fresh longer, pop them in the fridge for up to a week. You can also freeze the brownies for up to 3 months; just wrap them tightly in plastic wrap and then place in a freezer bag. To reheat, microwave a brownie square for about 10-15 seconds. Keep in mind the texture may become a tad denser upon reheating, but the flavors remain delightful!
Chef’s Helpful Tips
- Ensure all ingredients are at room temperature, especially the eggs and butter, to achieve a smooth batter.
- Don’t overmix the batter once you add the flour; this helps keep the brownies tender.
- For an extra minty flavor, feel free to add a touch more peppermint extract, but keep it balanced!
- Make the frosting ahead of time and store it in the refrigerator, just rewhip it before using.
- If you find your brownies too fudgy, slightly reduce the amount of oil next time for a lighter texture.
- These brownies can also be made egg-free by using a flax egg or a commercial egg replacer.
These Mint Chocolate Chip Brownies with Green Swirl Frosting elevate any gathering or treat yourself moment—you’ll marvel at their flavor and charming appearance! Whether you share them or keep them all to yourself, these brownies promise satisfaction in every bite. Don’t hesitate to experiment with your favorite mix-ins or frosting designs. Enjoy the journey of baking and, most importantly, savor the results. Dive into this delicious chocolate-mint experience, and share your creations with those you love!
Recipe FAQs
Can I use different types of chocolate chips?
Absolutely! While Andes crème de menthe chips add a distinct flavor, you can substitute them with standard semi-sweet chocolate chips, dark chocolate chips, or even white chocolate chips if you prefer a sweeter taste. Just keep in mind that this will alter the mint flavor overall.
How do I make these brownies gluten-free?
To make these brownies gluten-free, simply use a 1:1 gluten-free baking flour blend for the all-purpose flour. Make sure to check that all your ingredients, especially the baking powder and chocolate chips, are gluten-free as well.
What if I want to reduce the sugar content?
If you’d like to lower the sugar, consider reducing the granulated sugar to 1 ¾ cups and adjusting the powdered sugar in the frosting. You can also substitute some granulated sugar with applesauce or mashed bananas, which will add some moisture and a touch of natural sweetness.
Can I prepare the brownies ahead of time?
Definitely! You can bake these brownies a day or two in advance. Just store them in an airtight container at room temperature. Frost them the day you plan to serve for optimal freshness and taste. If you know you’ll be serving them later, wait to frost until right before serving to keep the frosting fluffy and delightful!
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📖 Recipe Card

Mint Chocolate Chip Brownies with Green Swirl Frosting
- Prep Time: 20 minutes
- Cook Time: 40 minutes
- Total Time: 1 hour
- Yield: 24 servings 1x
- Category: Desserts
- Method: Baking
- Cuisine: American
Description
These Mint Chocolate Chip Brownies with Green Swirl Frosting combine rich chocolate and mint flavors, making them a delightful option for any dessert lover. With a simple prep process and the key ingredients of brownie mix and Andes mint chips, these brownies are perfect for celebrations or just a sweet treat at home.
Ingredients
- ½ cup unsalted butter
- ¼ cup dark chocolate unsweetened cocoa powder
- ½ cup vegetable oil
- 2 cups granulated sugar
- 2 large eggs
- ¼ cup buttermilk
- 2 cups all-purpose flour
- 1 teaspoon baking soda
- ½ teaspoon kosher salt
- 1 cup andes creme de menthe baking chips
- ½ cup unsalted butter softened
- ½ cup milk
- 4 cups powdered sugar
- ½ teaspoon peppermint extract
- 1 drop green food coloring
- ¾ cup mini semi-sweet chocolate chips
Instructions
- Preheat the oven to 400°F and line a 13×9 baking dish with parchment paper.
- In a small saucepan over medium-high heat, combine the butter, cocoa powder, and oil. Bring to a boil while whisking continuously, then remove from heat.
- In a large mixing bowl, mix together the granulated sugar, eggs, and buttermilk. Gradually add the butter mixture, being careful not to over mix. Stir in the flour, baking soda, and salt until just combined. Gently fold in the Andes mints.
- Pour the brownie batter into the prepared baking dish and bake for 20 minutes. Remove from the oven and allow to cool.
- Once cooled, make the frosting. In a large mixing bowl, use an electric mixer to beat the softened butter for 3-4 minutes until it turns pale. Add in the milk, powdered sugar, peppermint extract, and food coloring, beating for an additional 3-5 minutes until the frosting is light and fluffy (add more milk if necessary). Fold in the mini chocolate chips.
- Spread the frosting over the cooled brownies. Refrigerate for 2 hours to set before cutting into squares and enjoying.
Notes
Use parchment paper for easy removal of the brownies from the pan after baking.
Feel free to adjust the amount of peppermint extract based on your flavor preference.
For a more festive look, add extra green food coloring to the frosting.
Nutrition
- Serving Size: 1 brownie
- Calories: 280
- Sugar: 32g
- Sodium: 160mg
- Fat: 12g
- Saturated Fat: 5g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 44g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 35mg





