If you love that cool, nostalgic combo of chocolate and mint, these grasshopper brownies are about to become your new obsession. They’re rich, fudgy, and layered with just the right amount of minty sweetness—finished with a glossy chocolate ganache that makes them feel downright luxurious. Think classic brownie meets vintage grasshopper dessert vibes, all in one irresistible square.
These brownies are perfect for St. Patrick’s Day, holiday dessert trays, or anytime you’re craving something indulgent with a refreshing twist. The deep chocolate base is soft and fudgy, the mint buttercream is creamy and lightly sweet, and the ganache on top ties everything together with a silky finish. They’re bold, beautiful, and absolutely made for sharing (or not—we won’t judge).
Tips for Perfect Results
These brownies are easy to make, but a few simple tips help them turn out bakery-worthy every time.
- Don’t overbake the brownies. You’re looking for a toothpick that comes out mostly clean with a few moist crumbs. This keeps the base fudgy instead of dry.
- Let the brownies cool completely before frosting. Warm brownies will melt the mint buttercream and make the layers slide.
- Go light on the mint extract. Mint is powerful—a little goes a long way. You want cool and refreshing, not overpowering.
- Adjust buttercream consistency as needed. Add powdered sugar if it’s too soft or a splash of milk if it’s too thick.
- Stir the ganache gently. Once heated, mix until smooth and glossy without whipping in air.
- Chill to set. A short chill helps the ganache firm up and makes slicing much cleaner.
Before You Begin – Here’s What You’ll Need :

Variations and Serving Ideas
These grasshopper brownies are fabulous as written, but they’re also easy to customize.
- Extra chocolate lovers: Add chocolate chips to the brownie batter for even more richness.
- Darker ganache: Use dark chocolate chips instead of semi-sweet for a deeper flavor.
- Holiday-ready: Top with green sprinkles or crushed mint candies before the ganache sets.
- Mini version: Bake in a muffin pan with liners for individual grasshopper brownie bites.
- Elegant finish: Add a dollop of whipped cream and a chocolate curl when serving.
They look especially stunning sliced into neat squares, showing off all three layers.
Storage and Make-Ahead Tips
These brownies are perfect for prepping ahead of time.
- Refrigerator: Store covered in the fridge for up to 5 days.
- Make ahead: You can bake the brownies a day early and add the frosting and ganache the next day.
- Freezing: Freeze unfrosted brownies for up to 2 months. Thaw, then add the mint buttercream and ganache.
- Slicing tip: Chill fully, then wipe your knife clean between cuts for sharp edges.
Grasshopper Brownies with Mint Ganache
- Total Time: 40 minutes
- Yield: 16 Servings 1x
Ingredients
Brownies
- 2 oz unsweetened chocolate, melted
- 1/3 cup vegetable Oil
- 1 cup granulated sugar
- 2 whole large eggs
- 3/4 cup all-purpose flour
- 1/2 teaspoon baking powder
- 1/2 teaspoon salt
Mint Buttercream
- 1/2 cup butter, softened
- 2 cups powdered sugar
- 1/2 teaspoon mint extract
- 3 Tablespoons skim milk
- green food coloring
Chocolate Ganache
- 3/4 cup semi-sweet chocolate chips
- 3/4 cup heavy cream
- Prep Time: 15 minutes
- Cook Time: 25 minutes
Final Encouragement
Grasshopper brownies with mint ganache are one of those desserts that feel nostalgic and indulgent all at once. They’re rich without being heavy, minty without being overpowering, and layered in a way that feels truly special. If you’re a mint-chocolate fan, this recipe is a must-bake.
Whether you’re making them for a holiday, a party, or just because you’re craving something cool and chocolatey, these brownies are guaranteed to impress. Save this one—you’ll find yourself coming back to it every time mint season rolls around 💚🍫✨