Air Fryer Mint Chocolate Brownies
Air Fryer Mint Chocolate Brownies are my favorite brownie to make when I want something that feels a little festive and completely over-the-top delicious. Rich, fudgy brownies come out of the air fryer with deep cocoa flavor, and once you layer on the fluffy peppermint buttercream and finish with a dark chocolate drizzle, every square looks absolutely gorgeous. I make these for weekend treats, parties, and holidays like Christmas and St. Patrick's Day. They slice cleanly, hold up beautifully, and disappear fast every single time.
Equipment
Ingredients
- 1 cup granulated sugar
- ½ cup unsalted butter melted
- 2 large eggs
- 1 teaspoon vanilla extract
- ⅓ cup unsweetened cocoa powder
- 1 cup all-purpose flour
- ¼ teaspoon salt
- ¼ teaspoon baking powder
Mint Frosting:
- ½ cup unsalted butter softened
- 2 cups powdered sugar
- 2 tablespoons milk
- 1 teaspoon peppermint extract
- Green food coloring optional
- Chocolate chips for topping
Instructions
- Preheat the air fryer to 320°F (160°C).
- In a large bowl, whisk together the melted butter and granulated sugar until well combined. Add the eggs and vanilla extract and mix until smooth.1 cup granulated sugar, ½ cup unsalted butter, 2 large eggs, 1 teaspoon vanilla extract
- Sift in the cocoa powder, all-purpose flour, salt, and baking powder. Fold gently until just combined. Do not overmix to keep the brownies fudgy.⅓ cup unsweetened cocoa powder, 1 cup all-purpose flour, ¼ teaspoon salt, ¼ teaspoon baking powder
- Grease a 7 × 7-inch pan that fits inside the air fryer basket. Pour in the brownie batter and spread evenly.
- Air fry for 20 to 25 minutes, checking doneness with a toothpick. The toothpick should come out with a few moist crumbs.
- Cool completely before frosting and slicing.
- While the brownies cool, prepare the mint frosting. Beat the softened butter until creamy. Gradually add the powdered sugar and mix until smooth.½ cup unsalted butter, 2 cups powdered sugar
- Add the milk and peppermint extract. Beat until light and fluffy. Add green food coloring, if using.2 tablespoons milk, 1 teaspoon peppermint extract, Green food coloring
- Spread the mint frosting evenly over the cooled brownies. Sprinkle with chocolate chips or drizzle with melted chocolate if desired.Chocolate chips
- Cut into 9 squares and serve.
Notes
Here are my best tips for making Air Fryer Mint Chocolate Brownies turn out perfectly every time.
Fold the dry ingredients gently: Once you sift in the cocoa, flour, salt, and baking powder, switch to a spatula and fold until just combined. Overmixing develops gluten and produces a cakey, tough brownie instead of a fudgy one.
Check for doneness early: Start checking at the 20-minute mark by inserting a toothpick into the center. You want a few moist crumbs clinging to it, not a clean toothpick, which signals the brownies are overbaked.
Cool completely before frosting: Patience here makes a real difference. Frosting warm brownies will cause the butter-based mint frosting to melt and slide off. Wait until the brownies are fully cooled to room temperature before spreading the frosting.
Beat the butter well before adding sugar: For the smoothest, fluffiest mint frosting, beat the softened butter on its own until it is creamy before gradually adding the powdered sugar. This prevents a lumpy or grainy frosting.
Add food coloring a little at a time: If you are using green food coloring, add it one drop at a time and mix thoroughly between additions so you can control the shade, from a soft pastel mint green to a deeper, more vibrant color.
Store properly: Keep cooled brownies in a single layer in an airtight container at room temp for up to 3 days, or stack them with parchment between layers. If your kitchen is warm, refrigerate for up to a week, or freeze them individually wrapped or after flash-freezing for up to 3 months.
Nutrition
Calories: 447kcalCarbohydrates: 62gProtein: 4gFat: 22gSaturated Fat: 14gPolyunsaturated Fat: 1gMonounsaturated Fat: 6gTrans Fat: 1gCholesterol: 91mgSodium: 96mgPotassium: 90mgFiber: 2gSugar: 49gVitamin A: 689IUCalcium: 29mgIron: 1mg
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