Mint Chocolate Cake

filed under: Chocolate Cakes on December 3, 2018

This Mint Chocolate Cake is four amazing layers of dark chocolate cake with a delicate mint buttercream in between each layer. The cake is covered in chocolate buttercream and topped off with a mint green chocolate curl. Minty perfection!

Are you baking as much as I am? Don’t miss out on these amazing recipes for your get-togethers: Snickerdoodles, Sugar Cookie Recipe, and of course 50 Best Cake Recipes!!

Mint Chocolate Cake

Mint Chocolate Cake

I have to tell you if you are a mint fan, this is the cake for you. The flavors work together so beautifully… decadent rich chocolate with a subtle minty buttercream. It’s one of the dreamiest cakes I have ever made! I would recommend making one of my homemade Buttermilk recipes to use for this recipe.

Peppermint Chocolate CakeLet’s talk a little bit about those curls. It can take a few times to get it right, so I recommend practicing. Or at least buy double what you need so you don’t have to worry about not getting the “perfect” curl every time! I have a post about “How to Make Chocolate Curls” if you want to see a quick video.

 Mint Chocolate Cake Recipe
The Chocolate Buttercream is so glorious it may ruin you for all other frostings! It practically melts in your mouth. Using good quality chocolate is important for this recipe!
How to Make Mint Chocolate Cake
This cake is SO moist and so flavorful, you are going to want to make it again and again. I had a hard time getting the piece to stand up it was so soft! But that’s a good problem to have with cake. 😉
If you have any questions on how to bake a level cake you can go here. Maybe you want some tips on how to build a layer cake? Or frost a cake? Or, you may want some High Altitude Baking Tips if you are baking at a higher altitude. Check those links out!
5 from 1 vote
The flavor is to die for!
Mint Chocolate Cake
Prep Time
1 hr
Cook Time
35 mins
Total Time
1 hr 35 mins

One of my favorite things about cooler temperatures is all things mint (or peppermint). We add that glorious flavoring to hot cocoa, to brownies, to cookies, and most definitely to cakes! 

Course: Dessert
Cuisine: American
Keyword: cake, chocolate cake, mint chocolate cake
Servings: 12 slices
Author: Amanda Rettke
Chocolate Cake
  • 1 3/4 cups all-purpose flour plus more for pans
  • 2 cups granulated sugar
  • 3/4 cup good cocoa powder
  • 2 tsp. baking soda
  • 1 tsp. baking powder
  • 1 tsp. kosher salt
  • 1 cup buttermilk, room temperature
  • 1/2 cup vegetable oil
  • 2 extra-large eggs room temperature
  • 1 tsp. pure McCormick vanilla extract
  • 1 cup freshly brewed hot coffee
Chocolate Buttercream
  • 6 oz good semisweet chocolate
  • 1 cup (2 sticks, 226 grams) unsalted butter, at room temperature
  • 1 extra-large egg yolk at room temperature
  • 1 tsp. pure McCormick vanilla extract
  • 1 1/4 cups sifted confectioners sugar
  • 1 tbsp. instant coffee powder
Mint Buttercream
  • 4 cups confectioners sugar
  • 1/2 cup butter, softened
  • 1/8 tsp. salt
  • 1/4 tsp. pure McCormick peppermint extract
  • 4 tbsp. milk
Mint Curls
  • 2 cups light green candy melts or 1 cup green + 1 cup white
  • 1 tbsp. shortening
  • Scant 1/4 teaspoon peppermint oil
Chocolate Cake
  1. Preheat the oven to 350 degrees F. Prepare two 8-inch round cake pans. (Line with parchment paper, then butter and flour the pans, or spray with baking spray)

  2. Sift the flour, sugar, cocoa, baking soda, baking powder and salt into the bowl of a stand mixer fitted with a paddle attachment and mix on low speed until combined.

  3. In another bowl, whisk together the buttermilk, oil, eggs, and vanilla. With the mixer on low speed, slowly add the wet ingredients to the dry. With mixer still on low, add the coffee and stir just to combine, scraping the bottom of the bowl with a rubber spatula.

  4. Pour the batter into the prepared pans and bake for 35 to 40 minutes, until a cake tester comes out clean.
  5. Cool in the pans for 30 minutes, then turn them out onto a cooling rack and cool completely.
  6. When cakes are completely cool, level each layer of chocolate cake and then cut each layer in half. You should now have four layers of cake. Chill until ready to assemble.

Chocolate Buttercream
  1. Chop the chocolate and place it in a heatproof bowl set over a pan of simmering water. Stir until just melted and set aside until cooled to room temperature.

  2. In the bowl of a stand mixer fitted with a paddle attachment, beat the butter on medium-high speed until light yellow and fluffy, about 3 minutes. Add the egg yolk and vanilla and continue beating for 3 minutes.

  3. Turn the mixer to low, gradually add the confectioners sugar, then beat at medium speed, scraping down the bowl as necessary, until smooth and creamy. Dissolve the coffee powder in 2 teaspoons of the hottest tap water. On low speed, add the chocolate and coffee to the butter mixture and mix until blended.

  4. *Don’t whip! Set aside until ready to assemble cake.
Mint Buttercream
  1. In the bowl of stand mixer, cream sugar with 1/2 cup butter.
  2. Blend peppermint extract, 2 tablespoons milk, and salt. Gradually stir remaining milk into frosting until desired spreading consistency is reached.

Mint Curls
  1. Melt the candy melts and the shortening in a large microwave-safe bowl for 1-minute increments, then in 15-second increments, stirring after each heating.

  2. When candy is melted, add peppermint oil and stir until incorporated.
  3. Take out a large, flat and clean cookie sheet and flip it over. We will use the back.
  4. Pour half of the melted mixture over the cookie sheet and spread out with an offset spatula. This is important, as you want the layer to be as even and level as possible. Thin is good, but not translucent.

  5. Place it into the fridge to set for 1 to 2 minutes. You can also leave it on the counter for about 10 minutes.
  6. The mixture needs to be at the perfect temperature for curls to form. If it’s too cold, they will just break. If it’s too warm, they will just be blobs. Press your finger into the mixture. If it leaves a mark, the mixture is too soft.

  7. Using a flat head screwdriver (clean!), press the screwdriver into the mixture at a 45-degree angle and then move forward slowly. Curls should form. Immediately place curls on a cooled plate or in the refrigerator so that they hold their shape. Chill until ready to assemble cake.

When Ready To Assemble
  1. Place first layer of chocolate cake on cake stand or cake plate. Spread 1/3 of mint buttercream over cake.
  2. Repeat this with remaining chocolate cake and mint buttercream.
  3. Cover cake with chocolate buttercream. Try to smooth out surface and sides of cake as much as possible.
  4. Place remaining chocolate buttercream into a piping bag fitted with a large, open round tip (such as a 2A tip).

  5. Pipe out dollops of frosting around the top of the cake. Sprinkle mint curls over top. Chill cake until ready to serve.

Recipe Video

If you love mint here are some other great recipes:

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  • Annoyed says:

    Please confirm your measurements for the icing. A half a cup of butter to 4 cups sugar?

  • Judy Pichon says:

    I used 2 sticks of butter in the mint Buttercream. I think there’s a mistake in the recipe.

  • April Aronoff says:

    HI! I noticed that the chocolate buttercreme in the chocolate mint bake. has a raw egg yolk in it. I am concerned about bacteria. Thoughts?

  • Nicci Judd says:

    C =cups does it??

  • Bethany says:

    Worst recipe ever. Followed it to a tee and cake all over the bottom of my oven!

  • Online Dubai Cake Delivery says:

    Love it 🙂 Amazing

  • Tina says:

    You say this is a four layer cake, yet in the directions it reads to grease 2 cake pans…?

  • Cheryl says:

    This cake looks amazing as I love mint. Too me this should bring the mint taste right home. I am making this, this weekend! If the family is lucky I might leave a taste for them.

  • Carla says:

    Thanks for the recipe!