Mint Brownies Chocolate Frosting

Section: Sweet Treats for Any Occasion

These brownies combine rich chocolate with a creamy peppermint filling and glossy chocolate topping. Start by melting chocolate and butter, then blend in sugar and eggs until smooth. Fold in flour and cocoa, bake, and cool. Whip up a minty green filling using butter, powdered sugar, and peppermint extract, then pour it over the chocolate base. Finish with a smooth chocolate and butter glaze. The result is a treat with fudgy layers, refreshing mint, and a delicate chocolate finish—ideal for celebrations or whenever you want a sweet, homemade delight.

woman cooking.
Created By Lena
Updated on Mon, 05 Jan 2026 12:43:36 GMT
A plate of chocolate and green frosted cake. Save
A plate of chocolate and green frosted cake. | recipesbylena.com

Mint brownies instantly elevate any dessert table with their dense chocolate base and cool creamy mint layer. Whenever I bake these for family gatherings or holiday parties they disappear faster than any other treat I make. This is the go to for when I want something nostalgic but a little unexpected.

I started making these for St Patricks Day one year and now everyone wants them for birthdays and bake sales too. That minty layer makes them extra special and they are always crowd pleasers.

Ingredients

  • Unsalted butter: creates a moist fudgy texture and makes both brownie and frosting layers rich
  • Semi sweet chocolate: sets up a deep cocoa flavor and helps with that glossy top use good quality bars if possible
  • White sugar: gives structure and crackly edges
  • Large eggs: provide lift and a dense crumb make sure they are room temperature
  • Cocoa powder: boosts intensity look for Dutch processed for smoother flavor
  • All purpose flour: ensures brownies stay chewy and soft
  • Salt: balances sweetness and heightens chocolate taste
  • Peppermint extract: is where the minty magic happens be sure to use pure extract for the best taste
  • Green food coloring: just a drop gives the classic mint layer tint
  • Powdered sugar: ensures the mint layer is smooth and creamy sift it for best texture
  • Heavy cream: softens and fluffs the frosting just a tablespoon will do
  • For topping: more butter and semi sweet chocolate combine for a luscious glaze

Instructions

Make the brownie base:
Melt unsalted butter and semi sweet chocolate together in a saucepan over low heat stirring often until completely smooth and glossy
Add sugar and eggs:
Remove from heat and stir in sugar then beat in eggs one at a time whisking well after each this creates the signature fudgy cheesecake like crumb
Mix dries:
In another bowl whisk cocoa powder flour and salt thoroughly to eliminate flour pockets
Combine wet and dry:
Fold dry mixture gently into melted chocolate base mixing just until streaks disappear for tender results
Bake:
Spread batter into a greased or lined baking pan smoothing the top Bake for about 30 minutes until a toothpick comes out with moist crumbs Avoid overbaking for extra fudgy centres
Cool completely before adding mint layer
Prepare mint frosting:
Beat softened butter with powdered sugar peppermint extract and a few drops of food coloring Add cream to achieve a fluffy but spreadable consistency Taste and adjust for peppermint intensity if needed
Layer on brownies:
Spread the mint frosting evenly over completely cooled brownies using an offset spatula for a smooth finish
Make the chocolate glaze:
Melt semi sweet chocolate with more butter over gentle heat until pourable and silky
Top brownies:
Pour glaze over mint layer and quickly smooth it with a spatula Let set at room temperature or chill until glaze is firm to the touch before slicing into bars
A chocolate and green frosted dessert.
A chocolate and green frosted dessert. | recipesbylena.com

Whenever I pull out the peppermint extract the kitchen fills with that unmistakable scent and just the anticipation makes everyone sneak into the kitchen for a corner piece I love how the green mint layer instantly brings a sense of celebration even to ordinary days

Storage Tips

Cut brownies only when completely set and store in an airtight container between layers of parchment This keeps the glaze and frosting picture perfect A chilled pan of brownies can last up to a week but I recommend bringing them to room temperature for serving so the flavors pop

Ingredient Substitutions

Use dark chocolate if you want an extra intense cocoa hit Dairy free butters work surprisingly well if needed Almond extract adds a twist if peppermint is not your thing For a caffeine kick espresso powder in the base deepens the chocolate

Serving Suggestions

Pair with vanilla ice cream or a drizzle of hot fudge Sprinkles or a chocolate curl garnish add a festive touch Serve cut into small squares on tiered trays for parties or slice big for an over the top dessert

Cultural Notes

Mint brownies are an American bakery classic especially popular at potlucks and retro style parties Their green tinted layer nods to holiday flavors but these brownies are welcome year round For many families mine included they are a must for March celebrations

Seasonal Adaptations

Swap red or pink coloring for winter holidays Fold in crushed candy canes for December treats Add lemon extract to the frosting for a springtime variation

Success Stories

I made these for a bake sale and they sold out within minutes Someone once told me these taste like a grown up Girl Scout cookie and after trying them I completely agree If you love Andes mints or chocolate peppermint patties this is your new favorite

Freezer Meal Conversion

These freeze perfectly Cut cooled brownies into bars wrap tightly in foil and freeze up to two months Just let them thaw at room temperature for a quick dessert that still tastes bakery fresh

A variety of foods are displayed on a table.
A variety of foods are displayed on a table. | recipesbylena.com

Makes a striking dessert for any occasion and is sure to become a family favorite. Try this recipe the next time you want treats that stand out on any table.

Recipe FAQs

→ How do I achieve a smooth mint layer?

Beat the butter until creamy before gradually adding powdered sugar, extract, and food coloring. Spread evenly on cooled brownies for best results.

→ Can I make these brownies gluten-free?

You can substitute all-purpose flour with your preferred gluten-free baking blend in equal measure for similar texture.

→ What is the best way to melt chocolate for topping?

Melt chocolate and butter slowly over low heat or use a microwave in short intervals, stirring frequently to prevent burning.

→ How do I cut brownies without smearing the frosting?

Chill the brownies until the chocolate topping is set, then use a sharp knife dipped in hot water and wiped dry between slices.

→ Can the peppermint flavor be adjusted?

Yes, add peppermint extract a little at a time and taste as you go until your desired level of mintiness is reached.

Mint Brownies with Chocolate Frosting

Fudgy brownies with a cool mint layer and a silky chocolate topping for irresistible flavor.

Preparation Time
20 minutes
Time to Cook
30 minutes
Overall Time
50 minutes
Created By: Lena

Recipe Category: Desserts

Difficulty Level: Medium Difficulty

Cuisine Style: American

Serving Size: 12 Portions (One 22 x 33 cm tray, sliced into 12 squares)

Dietary Categories: Suitable for Vegetarians

Ingredients List

→ Brownie Base

01 226 grams unsalted butter
02 113 grams semi-sweet chocolate
03 400 grams white sugar
04 4 large eggs
05 30 grams cocoa powder
06 125 grams all-purpose flour
07 0.5 teaspoon salt

→ Mint Frosting

08 113 grams unsalted butter, softened
09 2 to 4 drops green food coloring
10 1.5 teaspoons peppermint extract
11 0.25 teaspoon salt
12 250 to 320 grams powdered sugar
13 15 to 30 milliliters heavy cream

→ Chocolate Topping

14 170 grams semi-sweet chocolate
15 113 grams unsalted butter

How to Make It

Step 01

Preheat oven to 175°C. In a saucepan over low heat, melt unsalted butter with semi-sweet chocolate until smooth and fully combined.

Step 02

Remove from heat and stir in sugar. Add eggs individually, mixing well after each addition to ensure a glossy, even texture.

Step 03

In a separate bowl, whisk together cocoa powder, flour, and salt. Gently fold into the chocolate mixture until just combined to preserve tenderness.

Step 04

Pour batter into a greased baking pan, smoothing the top. Bake for 30 minutes or until a toothpick inserted in the center yields moist crumbs. Do not overbake. Cool completely in the pan.

Step 05

Beat softened butter with powdered sugar, peppermint extract, food coloring, and salt until light and fluffy. Add heavy cream gradually to achieve a smooth, spreadable consistency.

Step 06

Evenly spread mint frosting over the cooled brownie base. Refrigerate briefly to set the layer.

Step 07

Melt semi-sweet chocolate with butter until glossy. Spread over the chilled mint layer, ensuring even coverage. Allow the topping to set completely before slicing into squares.

Extra Tips

  1. Ensure brownies are fully cool before applying frosting to prevent melting. For clean cuts, chill thoroughly and slice with a hot, dry knife.

Essential Tools

  • Saucepan
  • Mixing bowls
  • Whisk
  • Electric mixer
  • Baking pan (approximately 22 x 33 cm)
  • Spatula

Allergen Warnings

Double-check all ingredients for allergens and consult your doctor if you’re unsure.
  • Contains eggs, dairy, and gluten; may not be suitable for individuals with related allergies.

Nutritional Information (Per Serving)

This info is offered for general knowledge and isn’t meant as medical advice.
  • Calories Info: 250
  • Total Fat: 12 grams
  • Total Carbs: 34 grams
  • Proteins Content: 3 grams