A rich, moist chocolate layer cake with a smooth cocoa buttercream frosting, perfect for any celebration.
Author:Carla Davis
Prep Time:20 min
Cook Time:35 min
Total Time:55 min
Yield:12 servings 1x
Category:Dessert
Method:Baking
Cuisine:American
Diet:Vegetarian
Ingredients
Scale
2 cups all-purpose flour
2 cups granulated sugar
3/4 cup unsweetened cocoa powder
2 teaspoons baking soda
1 teaspoon baking powder
1 teaspoon salt
1 cup buttermilk
1/2 cup vegetable oil
2 large eggs
2 teaspoons vanilla extract
1 cup boiling water
For the Frosting:
1 cup (2 sticks) unsalted butter, softened
3 1/2 cups powdered sugar
1/2 cup unsweetened cocoa powder
1/2 cup milk
1 teaspoon vanilla extract
Instructions
Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
In a large bowl, whisk together the flour, sugar, cocoa powder, baking soda, baking powder, and salt.
Add the buttermilk, oil, eggs, and vanilla extract to the dry ingredients. Beat on medium speed for 2 minutes.
Carefully stir in the boiling water. The batter will be thin.
Pour the batter evenly into the prepared cake pans.
Bake for 30-35 minutes, or until a wooden skewer inserted into the center comes out clean.
Let the cakes cool in the pans for 10 minutes before inverting them onto a wire rack to cool completely.
While the cakes cool, prepare the frosting. In a large bowl, beat the softened butter until creamy.
Gradually add the powdered sugar and cocoa powder, alternating with the milk, beating until smooth and spreadable. Stir in the vanilla extract.
Once the cakes are completely cool, frost the top of one layer, then place the second layer on top. Frost the top and sides of the entire cake.
Notes
For an even richer chocolate flavor, you can add 1 teaspoon of instant espresso powder to the dry ingredients.
Ensure your buttermilk is at room temperature for best results.
If you don’t have buttermilk, you can make a substitute by adding 1 tablespoon of white vinegar or lemon juice to 1 cup of milk and letting it sit for 5 minutes.