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The Best Ultimate Super Moist Chocolate Cake with Rich Chocolate Buttercream

A tall slice of incredibly moist chocolate cake layered with thick chocolate frosting on a white plate.

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This is the foolproof recipe for the best homemade chocolate cake you will ever make. It delivers an ultra moist cake with a tender crumb and intense dark chocolate flavor, topped with a rich chocolate buttercream.

Ingredients

Scale
  • 1 3/4 cups all-purpose flour
  • 1 3/4 cups granulated sugar
  • 3/4 cup unsweetened cocoa powder
  • 1 1/2 teaspoons baking soda
  • 1 1/2 teaspoons baking powder
  • 1 teaspoon salt
  • 2 large eggs
  • 1 cup buttermilk
  • 1/2 cup vegetable oil
  • 2 teaspoons vanilla extract
  • 1 cup hot brewed coffee
  • 1 cup powdered sugar (for frosting)
  • 1/2 cup unsalted butter, softened (for frosting)
  • 1/2 cup unsweetened cocoa powder (for frosting)
  • 1/4 cup milk or heavy cream (for frosting)
  • 1 teaspoon vanilla extract (for frosting)

Instructions

  1. Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
  2. In a large bowl, whisk together the flour, sugar, 3/4 cup cocoa powder, baking soda, baking powder, and salt.
  3. Add the eggs, buttermilk, oil, and 2 teaspoons of vanilla extract to the dry ingredients. Beat with an electric mixer on medium speed for two minutes.
  4. Carefully pour in the hot coffee and mix on low speed until just combined. The batter will be thin; this is correct for a moist chocolate cake.
  5. Divide the batter evenly between the prepared cake pans.
  6. Bake for 30 to 35 minutes, or until a wooden pick inserted into the center comes out clean.
  7. Let the cakes cool in the pans for 10 minutes before inverting them onto a wire rack to cool completely.
  8. Prepare the frosting: In a large bowl, beat the softened butter until creamy.
  9. Gradually add the powdered sugar and 1/2 cup cocoa powder, alternating with the milk, beating until smooth.
  10. Add the vanilla extract and beat on high speed until the frosting is light and fluffy. Add more milk if the frosting is too stiff.
  11. Once the cakes are completely cool, frost and assemble your decadent chocolate dessert layer cake.

Notes

  • Using hot coffee deepens the chocolate flavor without making the cake taste like coffee. This is key for a rich dark chocolate cake.
  • Do not overmix the batter once the wet and dry ingredients are combined to maintain a tender crumb.
  • For an ultra moist cake, wrap the cooled layers tightly in plastic wrap before frosting.

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