Decadent Peppermint Mocha Layer Cake

This Peppermint Mocha Cake combines rich chocolate layers flavored with coffee and a hint of peppermint, topped with a fluffy chocolate-peppermint frosting and a cloud of peppermint whipped cream. A light sprinkle of crushed candy canes finishes the cake with bright color and a crisp peppermint crunch.

I developed this recipe inspired by a favorite seasonal peppermint mocha drink. The idea was to capture that cozy coffee-and-chocolate flavor in a layered cake that’s festive enough for holidays and special gatherings. The cake uses strong brewed coffee in place of water to deepen the chocolate and mocha notes, and peppermint extract adds that classic winter touch. Serve it on a cake stand for a lovely centerpiece, and pair it with hot cocoa or a peppermint mocha for a themed dessert service.

If you prefer a taller cake, you can slice each baked layer in half horizontally to make four layers—just divide the frosting accordingly so each layer gets enough. For a straight mocha cake without the peppermint, omit the peppermint extract and crushed candy canes and use vanilla in their place.

Ingredients

Instructions

1. Cake:

   Preheat the oven to 350°F (175°C). Prepare two 8- or 9-inch round cake pans by greasing, flouring, and lining the bottoms with parchment paper.

2. Batter:

   In a large bowl, combine the chocolate cake mix, the ingredients called for on the box, but use strongly brewed, cooled coffee instead of the water specified. Add ½ teaspoon peppermint extract. Mix until combined, then beat for 2 minutes to incorporate air for a tender crumb.

3. Baking:

   Divide the batter evenly between the prepared pans. Bake at 350°F for about 29–33 minutes, or until a toothpick inserted into the center comes out clean. Allow the cakes to cool in the pans for a few minutes, then turn them out onto a cooling rack. Once fully cooled, remove the parchment and level the tops with a large serrated knife if needed.

4. Frosting:

   Beat together ½ cup softened butter and ½ cup shortening until smooth. Add ½ cup marshmallow cream and beat until incorporated. In a separate bowl, sift together 3½ cups powdered sugar and ½ cup cocoa, then add the sugar/cocoa mixture to the butter mixture one cup at a time. Add 1–2 tablespoons of milk and 1 teaspoon peppermint extract, beating until the frosting is light and fluffy. Adjust milk to reach spreading consistency.

5. Peppermint Whipped Cream:

   Chill a mixing bowl and beaters in the freezer for 10–15 minutes. Pour 1 cup heavy whipping cream into the chilled bowl and beat until it begins to thicken. Add 3 tablespoons powdered sugar, ½ teaspoon vanilla, and ½ teaspoon peppermint extract. Continue to beat until soft peaks form. Keep chilled until ready to use.

6. Assembly:

   Place one cake layer on a platter or cake stand, securing it with a small dab of frosting underneath so it doesn’t slide. Spread half of the chocolate-peppermint frosting over the bottom layer using an offset spatula for smooth, even coverage. Set the second layer on top and spread the remaining frosting over the top and sides as desired. Finish by spooning or piping the peppermint whipped cream on top and sprinkling crushed candy canes over the whipped cream for decoration and crunch. Chill briefly before serving if you prefer firmer frosting.

7. Tips and Variations:

   For a classic mocha version, omit the peppermint extract and crushed candy canes and replace the peppermint extract with vanilla. To make a taller cake, slice each cooled layer horizontally into two and stack to create four layers—divide the frosting evenly. If you prefer a stronger coffee flavor, use espresso or a very strong brewed coffee. Store leftovers covered in the refrigerator for up to 3 days, and bring slices to room temperature before serving for best flavor.