To-Die-For Fudgy Mint Brownies

These rich Mint Fudge Brownies, have a decadent fudge brownie base, layered with a creamy, creme de menthe mint buttercream center and topped with a thick chocolate ganache. WOW!
These rich layered brownies go by many names; Grasshopper brownies, Creme de Menthe Brownies or decadent Mint Fudge Brownies, no matter what you call them, you should make them!
These are the simplest brownies ever, just a few simple and you are all set for super fudgy, a teensy bit cake-y, but oh so chocolatey brownies.
Start by preheating your oven to 350F degrees (375F for high altitude) and line a 9x13 inch baking pan with parchment paper or spray well.
- Cream the softened butter and sugar for 1-2 minutes on medium high speed, add another minute if using all natural cane sugar.
- Add eggs, mixing on medium for 2 minutes.
- Slowly add in flour while mixer is on low, scraping down sides once.
- Pour in Hershey's chocolate syrup and mix on medium-low speed until combined, scraping down sides and bottom of bowl until no lighter flour color is seen.
Pour brownie batter into prepared pan and bake for 25-30 minutes until the sides pull away slightly and the top springs back when lightly touched. Cool completely!Making the Creme de Menthe buttercream filling
- Cream butter and add powdered sugar, creaming until smooth, 1-2 minutes on medium.
- Pour in Creme de Menthe* (see below for substitution)
- Creamy, fluffy, light green buttercream layer.
- Spread creme de menthe frosting on cooled brownie base, place in fridge until ready to top with ganache.
Chocolate Ganache Layer
- Place chocolate chips and butter (I slice into pieces) in microwave safe bowl.
- Microwave in 20-30 second intervals, stirring between each heating. The chips will melt even after you microwave it.
- Spread on top of mint layer, cool completely, then slice and serve.
If you overheat your ganache, it will seize up, "break" so to speak, see my post on how to fix broken, oily or grainy ganache.
How to Cut Grasshopper Brownies
Now, when it comes to slicing or cutting these bad boys, I honestly can never get the layers super clean and perfect, but does that change how they taste, not-a-chance!? A fudgy brownie is just plain hard to cut, but these are my tips:
- Refrigerate the brownies for 20-30 minutes prior to cutting
- Using a long sharp knife, heated with hot water and wiped clean with a paper towel, slice quickly.
- Dip the knife back in hot water and wipe off the knife between cuts, since the ganache is harder, this works best for clean cuts.
- Or as with any regular brownies, sometimes using a plastic knife works the best!
See the post for High Altitude brownie adjustments!
I know you will LOVE these easier than you think Mint Fudge Brownies!!
To-Die-For Fudgy Mint Brownies
Recipe details
Ingredients
Fudge Brownies
- 1 cup sugar | I use all natural cane sugar in my baking, regular white sugar may be substituted
- ½ cup butter | the real deal!
- 4 large eggs
- 1 cup all-purpose flour
- 1 ½ cups Hershey's Chocolate Syrup | I used Simply 5 Natural Hershey's Syrup
Mint Buttercream
- 2 cups powdered sugar | also known as confectioners sugar
- 4 tablespoons Creme de Menthe liqueur or Syrup (see substitutions in notes)
- ½ cup butter | the real stuff again
Chocolate Ganache
- 2 cups semi-sweet chocolate chips
- 6 oz (1 ½ sticks) butter | still real butter
Instructions
- Brownies
- Start by preheating your oven to 350F degrees (375F for high altitude) and line a 9x13 inch baking pan with parchment paper or spray well. Cream the softened butter and sugar for 1-2 minutes on medium high speed, add another minute if using all natural cane sugar.
- Add eggs, mixing on medium for 2 minutes Slowly add in flour while mixer is on low, scraping down sides once.
- Pour in Hershey's chocolate syrup and mix on medium-low speed until combined, scraping down sides and bottom of bowl until no lighter flour color is seen. Pour brownie batter into prepared pan and bake for 25-30 minutes until the sides pull away slightly and the top springs back when lightly touched. Cool completely!
Mint Buttercream
- Cream butter and add powdered sugar, creaming until smooth, 1-2 minutes on medium. Pour in Creme de Menthe* (see below for substitutions), mixing until light and fluffy! Spread creme de menthe frosting on cooled brownie base, place in fridge until ready to top with ganache.
Chocolate Ganache
- Place chocolate chips and butter (I slice into pieces) in microwave safe bowl. Microwave in 20-30 second intervals, stirring between each heating. The chips will melt even after you microwave it. Spread on top of mint layer, cool completely, then slice and serve.
Tips
- To replace Creme de menthe liqueur
- 4 tablespoons Creme de Menthe syrup OR
- 1 ¼ teaspoons peppermint extract
- 1-2 drops of green food coloring or gel coloring (optional - but needed if you want the middle green)
- 3-4 tablespoons milk or cream (start slow and only add as much as needed for a light fluffy buttercream)
- A fudgy brownie is just plain hard to cut, but these are my tips:
- Refrigerate the brownies for 20-30 minutes prior to cutting
- Using a long sharp knife, heated with hot water and wiped clean with a paper towel, slice quickly.
- Dip the knife back in hot water and wipe off the knife between cuts
- High Altitude Mint Brownie Adjustments
- No ingredient adjustments necessary. Bake at 375 degrees instead of 350, watching at the 25 minute mark, you would be better off with them being underdone than overdone.
- Recipe from Life, Love and Good Food

Comments
Share your thoughts, or ask a question!
These look mouthwatering! If by some miracle I have time off around New Year's, will give this recipe a try. Chocolate and mint are one of my favorites. Thanks for sharing your recipe. Happy holidays! 🎉
Made this recipe and it was a huge hit!
My 7 year old loves mint and wanted this for her birthday instead of cake.
Even my hubby (who is not a fan chocolate) liked it!
I froze what wasn’t eaten and took out shortly before company and the texture/flavor was still amazing. Will make this again. Thought about trying a GF option as the texture is so different.. maybe I could get away with it? Any suggestions as to a good GF flour?