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Chocolate Kahlúa Cake with Strawberry Buttercream


  • Author: WAFA LI

Ingredients

Scale

For the Chocolate Kahlúa Cake:

  • 1¾ cups (220g) all-purpose flour
  • ¾ cup (75g) unsweetened cocoa powder
  • 2 tsp baking powder
  • ½ tsp baking soda
  • ½ tsp salt
  • ¾ cup (1½ sticks / 170g) unsalted butter, softened
  • 1½ cups (300g) granulated sugar
  • 3 large eggs, room temperature
  • 1 tsp vanilla extract
  • ½ cup (120ml) strong brewed coffee, cooled
  • ½ cup (120ml) Kahlúa (or other coffee liqueur)
  • ½ cup (120ml) whole milk

For the Strawberry Buttercream:

  • 1 cup freeze-dried strawberries, finely ground (or ¼ cup strawberry purée, reduced and cooled)
  • 1 cup (2 sticks / 230g) unsalted butter, softened
  • 4 cups (480g) powdered sugar
  • 12 tbsp heavy cream or milk
  • ½ tsp vanilla extract
  • Pinch of salt

Optional Garnish:

  • Fresh strawberry slices
  • Chocolate shavings
  • Edible gold flakes

Instructions

1. Make the cake:

  1. Preheat oven to 350°F (175°C). Grease and flour two 8″ or 9″ round cake pans.
  2. Whisk flour, cocoa, baking powder, baking soda, and salt in a bowl.
  3. In a stand mixer, beat butter and sugar until light (~3 min). Add eggs one at a time, then vanilla.
  4. Alternate adding dry ingredients and wet ingredients (coffee, Kahlúa, milk), beginning and ending with dry. Mix until just combined.
  5. Divide batter between pans. Bake 28–32 min until a toothpick comes out clean. Cool completely.

2. Make the strawberry buttercream:

  • If using freeze-dried strawberries: Grind to a fine powder in a blender or food processor.
  • Beat butter until creamy. Gradually add powdered sugar, then strawberry powder, vanilla, salt, and enough cream to reach spreadable consistency. Whip 2–3 min until fluffy and pale pink.

💡 Using fresh strawberry purée? Simmer ½ cup chopped berries until thick and reduced by half. Cool completely before adding to buttercream (max 2 tbsp to avoid soft frosting).

3. Assemble:

  • Level cakes if needed. Spread buttercream between layers, then over top and sides.
  • Decorate with fresh berries, chocolate, or a rustic swirl. Chill 30 min to set before slicing.

Prep Time & Nutrition (per slice, serves 12):

  • Prep Time: 30 min | Cook Time: 30 min | Total Time: 2+ hr (incl. cooling)
  • Calories: 520 | Net Carbs: 68g | Fats: 26g | Protein: 6g