Ingredients
Equipment
Method
Make the cake
- Preheat the oven to 350°F.
- Grease two 9-inch round cake pans with cooking spray.
- Line the bottoms of the pans with parchment paper.
- Whisk the flour, granulated sugar, cocoa powder, baking soda, baking powder, and salt in a large bowl.
- In a separate bowl, whisk the eggs, buttermilk, vegetable oil, and vanilla extract until combined.
- Add the egg mixture to the dry ingredients and mix until just combined.
- Gradually mix in the hot coffee until the batter is smooth; it will be thin.
- Divide the batter evenly between the pans and bake for 30–35 minutes, until a toothpick inserted in the centers comes out with a few moist crumbs.
- Cool the cakes in the pans for 10 minutes.
- Turn the cakes out onto wire racks and remove the parchment.
- Cool the cakes completely.
Make the peppermint frosting
- Beat the softened butter with a hand mixer or stand mixer on medium-high speed for 2–3 minutes, until pale and creamy.
- Add the powdered sugar in three additions, mixing on low speed after each until incorporated.
- Add the heavy cream, peppermint extract, and salt, then beat on medium-high speed for 2 minutes, until fluffy.
Frost and decorate
- Place one cooled cake layer on a serving plate and spread about 1 cup of frosting over it.
- Set the second cake layer on top and spread the remaining frosting over the top and sides.
- Sprinkle the crushed candy canes over the cake.
Notes
For neat slices, chill the frosted cake briefly before cutting and add the crushed candy canes just before serving so they stay crisp. Refrigerate covered for up to 4 days; freeze yes, preferably without the candy cane topping. For a dairy-free variation, use plant-based butter and cream and a dairy-free buttermilk alternative.
