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Decadent One-Bowl Chocolate Cake Recipe

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Indulge in this tender and moist chocolate cake, featuring layers of outrageously soft cake made from scratch and a rich, fudgy chocolate frosting. This one-bowl recipe is a dream dessert for chocolate lovers and surprisingly easy to make.

Ingredients

For the chocolate cake:

  • 2 cups (240g) all-purpose flour
  • 1½ cups (300g) granulated sugar
  • 1 cup (80g) unsweetened cocoa powder
  • 2 teaspoons baking powder
  • 1 teaspoon baking soda
  • ½ teaspoon salt
  • 2 large eggs
  • 1 cup (240mL) milk
  • ½ cup (120mL) vegetable oil
  • 2 teaspoons pure vanilla extract
  • 1 cup (240mL) hot black coffee

For the chocolate fudge frosting:

  • 1½ cups (180g) cocoa powder
  • 6 cups (800g) powdered sugar
  • 1½ cups (3 sticks / 340g) unsalted butter, softened
  • 1 teaspoon salt
  • 2 teaspoons pure vanilla extract
  • 10 to 12 tablespoons milk

Instructions

  • Prepare the cake pans: Preheat your oven to 350°F (175°C). Butter two 9-inch round cake pans, line the bottoms with parchment paper, and lightly dust the sides with cocoa powder.

  • Mix dry ingredients: In a large bowl, whisk together the flour, granulated sugar, cocoa powder, baking powder, baking soda, and salt.

  • Add wet ingredients: Make a well in the center of the dry ingredients and add eggs, milk, vegetable oil, and vanilla extract. Whisk until the batter is smooth and thick.

  • Incorporate coffee: Pour the hot coffee into the batter and whisk until well combined. The batter will be thin.

  • Bake the cakes: Divide the batter evenly between the prepared pans. Bake for 20-25 minutes, or until a toothpick inserted into the center comes out clean.

  • Cool the cakes: Let the cakes cool in the pans for 10 minutes, then turn them out onto a wire rack to cool completely.

  • Prepare the frosting: In a large bowl, beat the softened butter until creamy. Gradually add the cocoa powder, powdered sugar, salt, and vanilla extract, mixing on low speed. Add milk as needed to achieve a spreadable consistency. Increase the mixer speed to medium-high and whip until light and fluffy.

  • Assemble the cake: Place one cake layer on a serving plate and spread a generous amount of frosting on top. Place the second layer on top and frost the top and sides of the cake.

Notes

  • Using hot black coffee enhances the chocolate flavor without imparting a coffee taste.
  • For optimal texture, ensure all ingredients are at room temperature before mixing.
  • Store the frosted cake in the refrigerator for up to 5 days. Allow it to sit at room temperature for about 30 minutes before serving to soften.