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Square of chocolate marble cake with mocha frosting against a green background

Chocolate Marble Cake with Mocha Frosting

This Chocolate Marble Cake with Mocha Frosting combines a rich, buttery chocolate marble sheet cake with creamy coffee-and-chocolate mocha frosting for a scrumptious no-fuss dessert.
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Ingredients

For the cake:

  • 1 cup butter softened
  • 1 ¾ cups sugar
  • 2 large eggs
  • 2 tsp. vanilla extract
  • cups flour
  • 1 TBSP baking powder
  • ½ tsp salt
  • 1 cup half and half
  • ¼ cup unsweetened cocoa
  • 3 TBSP hot water

For the frosting:

  • 3 cups powdered sugar
  • cup unsweetened cocoa
  • 3 TBSP hot brewed coffee
  • 2 TBSP vanilla extract
  • ½ cup butter softened
  • 3-4 TBSP half and half

Instructions

For the cake:

  • Preheat oven to 325.
  • Beat butter and one and a half cups sugar at medium speed with a stand mixer for 4 to 5 minutes or until creamy.
  • Add eggs one at a time, beating until just blended after each addition.
  • Beat in vanilla extract.
  • Sift together flour, baking powder and salt.
  • Add to butter mixture alternating with half and half, beginning and ending with flour mixture.
  • Beat at low speed just until blended after each addition. Stop to scrape bowl as needed.
  • Spoon 1 1/4 cups batter into a 2 qt. bowl and stir in cocoa, 3 tablespoons of hot water and remaining 1/4 cup sugar. Stir until well blended.
  • Spread remaining vanilla batter into a greased and floured 15 x 10 inch jelly roll pan.
  • Spoon chocolate mixture over vanilla and gently swirl with a knife.
  • Bake at 325 for 23-28 minutes or until a wooden toothpick inserted into the center comes out clean.
  • Cool completely in pan on the wire rack for about an hour.
  • Frost with Mocha Frosting.

For the frosting:

  • Whisk together sugar and cocoa in a medium bowl.
  • Combine coffee and vanilla.
  • Beat butter at medium speed with a heavy duty electric mixer until creamy.
  • Gradually add sugar mixture alternately with coffee mixture, beating at low speed until blended.
  • Add half and half, 1 tablespoon at a time until frosting is smooth and a spreadable consistency.
Course: Dessert
Cuisine: American
Keyword: chocolate marble cake with mocha frosting, marble cake