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5.0 from 9 votes

Mint Brownie

Soft, fudgy chocolate mint brownies layered with creamy crème de menthe buttercream and rich ganache. Simple to make with a few easy shortcuts—perfect for parties, holidays, or anytime you need a crowd-pleasing treat!

Prep Time
20 mins
Cook Time
20 mins
Total Time
55 mins
Servings: 24 brownies
Calories: 369 kcal
Course: Dessert
Cuisine: American

Ingredients

Fudge Brownies
  • 1 cup sugar I used all natural cane sugar; regular white sugar may be substituted
  • ½ cup butter real butter
  • 4 large eggs room temperature is best
  • 1 cup all-purpose flour I use unbleached
  • 1 1/2 cups Hersheys Chocolate Syrup I used Simply 5 Natural Hersheys Syrup
Mint Buttercream
  • 2 cups powdered sugar
  • 4 tablespoons crème de menthe liqueur or syrup; see substitutions in notes
  • ½ cup butter
Chocolate Ganache
  • 2 cups semi-sweet chocolate chips
  • 6 oz butter 1 1/2 sticks
  • Optional: Add a pinch of salt and ½ - 1 teaspoon of vanilla extract to melted chocolate

Instructions

Brownies
    Cup of Yum
  1. Start by preheating your oven to 350°F (175° C) (375°F (190° C) for high altitude) and line a 9x13 inch baking pan with parchment paper or spray well. In a mixer, cream (mix together) the softened butter and sugar for 1-2 minutes on medium high speed, add another minute if using all natural cane sugar.
  2. Add eggs, mixing on medium for 2 minutes. Slowly add in flour while mixer is on low, scraping down sides once.
  3. 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 Frosting
  1. 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
  1. 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.

Notes

  • To replace Creme de menthe liqueur
  • A fudgy brownie is just plain hard to cut, but these are my tips:
  • knife
  • knife
  • knife
  • High Altitude Mint Brownie Adjustments
  • Storage Tips
  • Recipe adapted from Life, Love and Good Food
  • 4 tablespoons Creme de Menthe syrup OR 1 ¼ teaspoons peppermint extract or ¼ - ½ teaspoon creme de Menthe flavor. 
  • 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)
  • Refrigerate or freeze the brownies for 20-30 minutes before 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
  • No ingredient adjustments are necessary. Bake at 375°F (190° C) instead of 350, watching at the 25-minute mark; you would be better off with them being underdone than overdone.
  • Room Temperature: Store in an airtight container for up to 3 days. Use parchment paper between layers if stacking.
  • Refrigerator: Store in an airtight container for up to 1 week. Let sit at room temperature for 10-15 minutes before serving.
  • Freezer (Whole Pan): Cool completely, spread frosting, and cover tightly with plastic wrap and foil. Freeze up to 2 months. Thaw overnight in the fridge and add ganache before slicing.
  • Freezer (Individual Slices): Wrap slices in plastic wrap, place in a freezer-safe bag, and freeze up to 2 months. Thaw at room temperature or microwave for 10-15 seconds.
  • 👉 Pro Tip: Freezing with ganache may cause it to lose its smooth texture. For best results, add ganache after thawing.

Nutrition Information

Serving 1serving Calories 369kcal (18%) Carbohydrates 43g (14%) Protein 3g (6%) Fat 20g (31%) Saturated Fat 12g (60%) Polyunsaturated Fat 1g Monounsaturated Fat 6g Trans Fat 1g Cholesterol 67mg (22%) Sodium 134mg (6%) Potassium 148mg (4%) Fiber 2g (8%) Sugar 34g (68%) Vitamin A 466IU (9%) Vitamin C 0.04mg (0%) Calcium 22mg (2%) Iron 2mg (11%)

Nutrition Facts

Serving: 24brownies

Amount Per Serving

Calories 369

% Daily Value*

Serving 1serving
Calories 369kcal 18%
Carbohydrates 43g 14%
Protein 3g 6%
Fat 20g 31%
Saturated Fat 12g 60%
Polyunsaturated Fat 1g 6%
Monounsaturated Fat 6g 30%
Trans Fat 1g 50%
Cholesterol 67mg 22%
Sodium 134mg 6%
Potassium 148mg 3%
Fiber 2g 8%
Sugar 34g 68%
Vitamin A 466IU 9%
Vitamin C 0.04mg 0%
Calcium 22mg 2%
Iron 2mg 11%

* Percent Daily Values are based on a 2,000 calorie diet.