Irresistible Mint Chocolate Chip Swirl Brownies: A Decadent Delight
Indulge in the perfect harmony of rich chocolate and refreshing mint with these incredibly easy-to-make Mint Chocolate Chip Swirl Brownies. This dessert masterpiece features a fudgy brownie base beautifully marbled with a vibrant, creamy mint cheesecake swirl, creating a treat that’s as visually stunning as it is delicious. Evoking the beloved flavor of Thin Mints, these brownies are ideal for any occasion, from festive holiday gatherings to a simple sweet craving. Their eye-catching green hue makes them an especially delightful addition to St. Patrick’s Day celebrations or any moment you want to add a pop of color to your dessert spread.

Why You’ll Fall in Love with These Mint Chocolate Brownies
There’s something truly magical about the combination of chocolate and mint. It’s a classic pairing that offers a sophisticated yet comforting flavor profile. These brownies elevate that experience with their unique dual texture: the dense, chewy chocolate brownie perfectly complements the light, tangy cream cheese swirl. Here’s why this recipe will become a cherished favorite:
- Unforgettable Flavor: The rich, deep chocolate notes are exquisitely balanced by the cool, refreshing burst of mint, creating a taste sensation reminiscent of gourmet ice cream or your favorite holiday candy.
- Stunning Presentation: The bright green cream cheese swirl is not just for flavor; it’s a visual showstopper. This elegant marbling makes these brownies suitable for special occasions and guarantees compliments.
- Effortlessly Delicious: By leveraging a quality boxed brownie mix, we simplify the baking process without compromising on taste or texture. This means less time in the kitchen and more time enjoying your delectable creation.
- Perfectly Moist and Fudgy: Expect a brownie that is wonderfully moist, dense, and fudgy, providing the ideal canvas for the creamy, minty cheesecake layer.
- Versatile Treat: While their green swirl makes them a festive choice for St. Patrick’s Day or even Christmas (with a touch of red), these brownies are truly a year-round delight that satisfies any sweet tooth.

Key Ingredients for Your Mint Chocolate Chip Brownies
Crafting these extraordinary brownies begins with a careful selection of ingredients. We combine the convenience of a boxed mix with fresh additions to create both the rich brownie base and the irresistible mint cream cheese swirl. Here’s a breakdown of what you’ll need, along with insights into why each component is important:
For the Fudgy Brownie Base:
- Fudge Brownie Mix (Family Size): Opting for a family-size box designed for a 9×13-inch baking dish is crucial for achieving the correct volume and consistency for this recipe. A fudge brownie mix ensures that dense, moist texture we all crave.
- Large Eggs: Eggs act as a binder, provide structure, and contribute to the richness and moisture of the brownies.
- Vegetable Oil: This fat source is essential for creating a truly moist and tender brownie, ensuring it doesn’t dry out during baking.
- Water: The liquid component helps to hydrate the dry mix, bringing all the ingredients together into a smooth batter.
For the Creamy Mint Cheesecake Swirl:
- Block Cream Cheese (Softened): Using full-fat cream cheese that has been softened to room temperature is key. This allows for a perfectly smooth, lump-free swirl that melts into the brownie batter beautifully.
- Granulated Sugar: A touch of sugar sweetens the cream cheese layer, balancing its tanginess and enhancing the overall dessert profile.
- Large Egg Yolk: The egg yolk adds extra richness and helps to stabilize the cream cheese mixture, preventing it from separating and ensuring a creamy texture in the baked brownie.
- Mint Extract (Not Peppermint): This is a critical distinction! Mint extract offers a more complex and rounded flavor profile, combining the cool notes of peppermint with the sweeter, softer undertones of spearmint. Peppermint can sometimes be too intense or medicinal in flavor for some palates.
- Green Food Coloring: To achieve that vibrant, signature green swirl, a good quality food coloring is a must. Liquid food coloring works, but a gel paste (like Kelly Green) will provide a more intense color without altering the consistency of the cream cheese mixture too much. Don’t be shy; aim for a bright, bold green!
- Mini Chocolate Chips: These tiny chips are perfect for incorporating into the cream cheese swirl as they distribute evenly and melt subtly, adding little bursts of chocolate without overpowering the mint. They also look fantastic sprinkled on top.

How to Make Mint Chocolate Chip Swirl Brownies: A Step-by-Step Guide
Creating these delightful brownies is a straightforward process, combining simplicity with a touch of artistic flair. Follow these detailed steps to ensure your mint chocolate chip swirl brownies turn out perfectly fudgy, minty, and visually appealing.
Preparation:
- Preheat Your Oven: Begin by preheating your oven to 350°F (175°C). Proper preheating ensures even baking from the start.
- Prepare Your Baking Pan: Line the bottom and sides of a 9×13-inch baking pan with aluminum foil. Make sure to leave an overhang on all sides; this will create “handles” that make lifting the cooled brownies out of the pan incredibly easy. Alternatively, you can generously spray the pan with nonstick cooking spray. Set the prepared pan aside.
Making the Brownie Base:
- Mix the Brownie Batter: In a large mixing bowl, combine the fudge brownie mix, two large eggs, ½ cup vegetable oil, and ¼ cup water. Mix with a spoon or spatula until the ingredients are just combined and smooth. Be careful not to overmix, as this can lead to tougher brownies.
- Reserve and Pour: Before pouring all the batter into the prepared pan, scoop out about one cup of the brownie batter and set it aside. This reserved batter will be used later to enhance the swirl effect. Pour the remaining brownie batter evenly into the bottom of your prepared 9×13-inch baking pan.

Creating the Mint Cheesecake Swirl:
- Prepare the Cream Cheese Mixture: In a medium bowl, using a hand-held mixer, beat together the softened 8-ounce block of cream cheese, ¼ cup granulated sugar, one large egg yolk, ¼ teaspoon mint extract, and 4-5 drops of green food coloring. Beat for about one minute, or until the mixture is completely smooth and vibrant green. For a brighter green, add a few more drops of food coloring as desired.
- Fold in Mini Chocolate Chips: Gently stir in ⅔ cup of mini chocolate chips by hand into the green cream cheese mixture. This ensures they are evenly distributed throughout the swirl.

Assembling and Baking:
- Dollop the Swirl: Carefully dollop large spoonfuls of the vibrant green cream cheese mixture over the brownie batter in the baking pan. Try to spread it somewhat evenly, but don’t worry about perfection; the swirling will take care of that.

- Add Reserved Batter and Swirl: Now, take the reserved cup of brownie batter and dollop small spoonfuls over the green cream cheese mixture. This layering helps create a more pronounced and beautiful swirl. Then, take a knife, skewer, or butter knife and gently glide it through the layers, creating a beautiful swirl pattern. Be careful not to over-swirl, as this can cause the colors to muddy rather than marble distinctively.
- Garnish: Sprinkle a few more mini chocolate chips on top of the swirled batter for an extra touch of chocolatey goodness and visual appeal.

- Bake: Place the pan in the preheated oven and bake for 35-40 minutes. The brownies are done when a toothpick inserted into the center comes out with moist crumbs, but not wet batter. Overbaking can lead to dry brownies.

- Cool Completely: This step is critical! Allow the brownies to cool completely in the pan on a wire rack before attempting to cut them. Cooling allows the brownies and cheesecake swirl to set properly, resulting in clean, perfect squares. Rushing this step will lead to messy cuts.

Expert Tips for Brownie Perfection
Even with a simple recipe, a few insider tips can elevate your baking from good to truly exceptional. Here are some pointers for creating the best Mint Chocolate Chip Swirl Brownies:
- Choosing the Right Brownie Mix: While any good quality family-size fudge brownie mix will work, some brands offer richer flavor or fudgier textures. Experiment to find your favorite, but always ensure it’s intended for a 9×13-inch pan to match the recipe’s proportions.
- The Mint vs. Peppermint Distinction: As mentioned, mint extract provides a more balanced and nuanced flavor. Peppermint extract can be overpowering and sometimes has a medicinal taste. If you only have peppermint, start with half the amount and taste before adding more.
- Achieving a Vivid Green Swirl: For that show-stopping bright green, liquid food coloring might require many drops. Gel food coloring pastes (like Wilton’s Kelly Green or Leaf Green) offer much more concentrated color with fewer drops, preventing you from adding too much liquid to your cream cheese mixture.
- The Art of Swirling: The key to a beautiful swirl is gentle, deliberate movements. Use a knife or skewer and make broad, S-shaped or figure-eight motions through the batter. Avoid overmixing, as this can blend the colors too much, losing the distinct marble effect. The reserved brownie batter dolloped on top of the cream cheese before swirling helps create more defined chocolate streaks within the green.
- Don’t Rush the Cooling: Patience is truly a virtue when it comes to brownies, especially those with a creamy swirl. Cooling completely allows the cream cheese layer to set and the brownie to firm up, making for clean cuts and preventing a crumbly mess. For best results, chill them slightly in the refrigerator after they’ve cooled to room temperature for even crisper edges when cutting.
Creative Variations and Serving Suggestions
While these Mint Chocolate Chip Swirl Brownies are perfect as is, they also lend themselves beautifully to customization and creative serving ideas:
- Extra Toppings: A dollop of whipped cream, a scoop of vanilla or mint chocolate chip ice cream, or a drizzle of chocolate syrup can take these brownies to the next level.
- Holiday Theming: For Christmas, consider adding a few drops of red food coloring to a small portion of the cream cheese swirl to create a subtle red and green marble effect. For Halloween, an orange swirl could be fun!
- Different Chips: Swap out mini chocolate chips for white chocolate chips, dark chocolate chunks, or even a mix of mint chips for an extra pop of color and flavor.
- Mint Glaze: For an additional layer of minty goodness, prepare a simple glaze by mixing powdered sugar with a few drops of mint extract and a splash of milk or water. Drizzle it over the cooled brownies.
- Serve Warm or Cold: These brownies are delicious at room temperature, but some prefer them slightly chilled, which further firms up the cream cheese layer. A quick zap in the microwave can also bring out their fudgy warmth.
Storing Your Delicious Mint Chocolate Chip Brownies
To keep your brownies fresh and flavorful:
- Room Temperature: Store brownies in an airtight container at room temperature for up to 3 days. The cream cheese swirl is stable enough for this duration.
- Refrigeration: For longer storage, or if your kitchen is particularly warm, refrigerate the brownies in an airtight container for up to one week. Bring them back to room temperature or gently warm them before serving for optimal texture.
- Freezing: These brownies freeze wonderfully! Cut them into individual squares, wrap each tightly in plastic wrap, then place them in a freezer-safe bag or container. They can be frozen for up to 2-3 months. Thaw at room temperature or in the refrigerator overnight.
Frequently Asked Questions (FAQ)
Here are answers to some common questions about making these mint chocolate chip brownies:
- Can I make these brownies from scratch instead of using a box mix?
- Absolutely! If you have a go-to fudgy brownie recipe from scratch that you love, you can certainly use it as the base. Just ensure it’s a recipe designed for a 9×13-inch pan, and remember to reserve about a cup of batter for the swirl.
- What’s the real difference between mint extract and peppermint extract?
- Mint extract is typically a blend of peppermint and spearmint, resulting in a milder, more complex, and often sweeter mint flavor. Peppermint extract is pure peppermint, which is sharper, cooler, and can sometimes taste like a candy cane or mouthwash if used too liberally. For a more rounded flavor in baking, mint extract is usually preferred.
- My green swirl isn’t very bright. What went wrong?
- The most common reason for a dull green swirl is not using enough food coloring, or using a liquid food coloring that isn’t very concentrated. Next time, try adding more drops, or switch to a gel food coloring paste, which delivers much more intense color with less product.
- Why is it important to cool the brownies completely?
- Cooling is essential for two main reasons: texture and neatness. Warm brownies are gooey and delicate, making them difficult to cut cleanly, especially with a soft cream cheese swirl. Cooling allows all the layers to set and firm up, resulting in fudgy, cohesive squares.
Indulge in the Perfect Blend
These Mint Chocolate Chip Swirl Brownies are more than just a dessert; they are an experience. With their irresistible combination of rich chocolate, cool mint, and a beautiful marbled swirl, they are guaranteed to impress and delight anyone who takes a bite. Whether you’re baking for a special occasion or simply treating yourself, this recipe offers a simple yet elegant way to enjoy one of the most beloved flavor pairings. So go ahead, preheat your oven, gather your ingredients, and prepare to create a truly memorable sweet treat that tastes like a dream.
Originally published: February 2017
Updated photos & republished: March 2021
Craving More Delicious Recipes?
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- Chocolate Mint Crazy Cake
- Easy Grasshopper Cake
- Cheesecake Brownies
- Butterfinger Brownies
Mint Chocolate Chip Swirl Brownies
Mint Chocolate Chip Brownies are so easy to make and taste like your favorite Thin Mints! The bright green swirl makes this dessert a perfect treat for holidays or any special occasion.

Prep Time: 20 minutes
Cook Time: 35 minutes
Total Time: 55 minutes
Servings: 12
Author: Brandie Skibinski
Ingredients
FOR THE BROWNIES:
- 20 ounce box fudge brownie mix (family size for 9 x 13 baking dish)
- 2 large eggs
- ½ cup vegetable oil
- ¼ cup water
FOR THE CREAM CHEESE SWIRL:
- 8 ounce block cream cheese, softened
- ¼ cup sugar
- 1 large egg yolk
- ¼ teaspoon mint extract (not peppermint)
- 4-5 drops green food coloring (aim for a super green color)
- ⅔ cup mini chocolate chips
Instructions
- Preheat the oven to 350°F (175°C). Line the bottom and sides of a 9×13-inch baking pan with aluminum foil, leaving an overhang on all sides for easy removal. Alternatively, spray thoroughly with nonstick cooking spray. Set aside.
- For the Brownies: In a large bowl, mix together the brownie mix, eggs, oil, and water until just smooth. Reserve about one cup of this brownie batter for later use in the swirl. Pour the remaining brownie batter into the prepared baking dish, spreading evenly.
- For the Cheesecake Swirl: In a medium bowl, using a hand-held mixer, beat together the softened cream cheese, ¼ cup sugar, egg yolk, mint extract, and drops of green food coloring until the mixture is completely smooth and vibrantly green (about 1 minute). By hand, gently stir in ⅔ cup of the mini chocolate chips.
- Dollop large spoonfuls of the green cream cheese mixture evenly over the brownie batter in the pan.
- Take the reserved brownie batter and dollop it over the cream cheese mixture. Then, gently glide a knife or skewer through the layers, creating a beautiful swirl pattern. Be careful not to over-swirl to maintain distinct color separation.
- Sprinkle a few more mini chocolate chips on top of the swirled batter for garnish.
- Bake the brownies for 35-40 minutes, or until a toothpick inserted into the center comes out with moist crumbs but not wet batter.
- Allow the brownies to cool completely in the pan on a wire rack before cutting them into squares. This step is crucial for clean cuts and optimal texture.
Video
Notes
- Using a family-size boxed brownie mix for a 9×13-inch pan ensures the perfect brownie base.
- Mint extract is a blend of peppermint and spearmint, offering a more balanced and less intense flavor than pure peppermint extract.
- For a very bright green swirl, consider using concentrated gel food coloring paste.
Course: Dessert
Cuisine: American
Nutrition
Calories: 160kcal | Carbohydrates: 11g | Protein: 1g | Fat: 12g | Sodium: 19mg | Sugar: 10g
Nutritional Disclaimer
“The Country Cook” is not a dietician or nutritionist, and any nutritional information shared is an estimate. If calorie count and other nutritional values are important to you, we recommend running the ingredients through whichever online nutritional calculator you prefer. Calories and other nutritional values can vary quite a bit depending on which brands were used.
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