🍲 Recipes

Chocolate Unicorn Cake

By Kim • Birthday Cake • Cuisine?
5.00 Prep: 45m Cook: 25m
Ingredients:
  • 1 ¾ cups all-purpose flour
  • 1 cup dark cocoa powder (such as Hershey's® Special Dark), sifted
  • 2 teaspoons baking soda
  • 1 teaspoon baking powder
  • ¾ teaspoon salt
  • 1 cup firmly packed brown sugar
  • ½ cup white sugar
  • ½ cup unsalted butter, softened
  • 2 large eggs, at room temperature
  • 2 teaspoons vanilla extract
  • 1 cup strongly brewed coffee, cooled to room temperature
  • 1 cup sour cream
  • 1 cup unsalted butter, softened
  • 4 cups sifted powdered sugar
  • 1 ½ teaspoons vanilla extract
  • ¼ teaspoon salt
  • 1 tablespoon heavy cream, or more as needed
  • 1 drop blue food coloring, or as needed
  • 1 drop purple food coloring, or as needed
  • 1 tablespoon pink sprinkles, or as needed
  • 1 (.75 ounce) tube black decorating gel
  • 4 marshmallows, quartered
  • 1 tablespoon pink sanding sugar, or as needed
  • 8 birthday candles
Created: Sep 23, 2025 Updated: Sep 23, 2025