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slice of chocolate cake with white chocolate frosting close up

How to Make Chocolate Cake with White Chocolate Frosting

Moist chocolate cake topped with creamy white chocolate frosting. This easy sheet cake delivers rich cocoa flavor balanced with smooth white chocolate buttercream.

  • Total Time: 55 minutes
  • Yield: 15 slices 1x

Ingredients

Units Scale
2 cups all-purpose flour1/3 cup Dutch-process cocoa powder2 teaspoons baking soda1 teaspoon baking powder2 cups granulated sugar1/2 cup vegetable oil2 large eggs2/3 cup buttermilk1/3 cup sour cream1 cup freshly brewed coffee6 oz white chocolate1 cup unsalted butter2-3 cups powdered sugar1/2 teaspoon salt2-3 tablespoons whipping cream

Instructions

1. Preheat oven to 350°F (180°C) and grease a 9×13 baking pan.

2. Whisk flour, cocoa powder, baking soda, baking powder and sugar in a large bowl.

3. In another bowl mix oil, eggs, vanilla, buttermilk and sour cream.

4. Whisk hot coffee into the wet mixture.

5. Combine wet and dry ingredients and mix until smooth.

6. Pour batter into prepared pan and bake for 30–40 minutes.

7. Cool cake completely in the pan.

8. Melt white chocolate and allow it to cool for 15 minutes.

9. Beat butter, powdered sugar and salt until smooth.

10. Mix in melted white chocolate and whipping cream until creamy.

11. Spread frosting over the cooled cake and slice to serve.

Notes

Use high-quality white chocolate for the best frosting flavor.

If you don’t have buttermilk, mix milk with 2 teaspoons lemon juice and rest 5 minutes.

Let the cake cool completely before frosting.

Store cake at room temperature for 2 days or refrigerated up to 4 days.

  • Author: Rita
  • Prep Time: 20 minutes
  • Cook Time: 35 minutes
  • Category: Cakes
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 slice
  • Calories: 497
  • Sugar: 50g
  • Sodium: 260mg
  • Fat: 26g
  • Saturated Fat: 13g
  • Unsaturated Fat: 12g
  • Trans Fat: 1g
  • Carbohydrates: 64g
  • Fiber: 1g
  • Protein: 4g
  • Cholesterol: 66mg

Find it online: https://ritamugcakes.com/chocolate-cake-with-white-chocolate-frosting/