Chocolate Cake with Rich Chocolate Buttercream
This moist chocolate cake has tender layers, deep cocoa flavor, and a rich chocolate buttercream finish.
Prep
: 10
Total
: 25 minutes
Ingredients
Ingredients
- 1 1/2 cups granulated sugar
- 1/2 cup packed light brown sugar
- 3/4 cup unsweetened cocoa powder
- 1 tsp baking soda
- 3/4 tsp salt
- 1 cup boiling water
- 3/4 cup vegetable oil or canola oil
- 1/4 cup unsalted butter melted
- 2 large eggs
- 3 large egg yolks
- 1 Tbsp vanilla extract
- 2 cups all-purpose flour
- 1/2 cup sour cream
- 1/3 cup milk
Instructions
Instructions
- Heat the oven to 350°F (175°C), butter two 9-inch round cake pans, and line their bottoms with parchment.
- Whisk the sugars, cocoa powder, baking soda, and salt in a large heatproof bowl. Add the boiling water and whisk; cool for 5 minutes.
- Blend in the oil and melted butter, then the eggs, yolks, and vanilla. Mix in the flour, milk, and sour cream just until combined.
- Divide the batter between the pans and bake 29 to 34 minutes, until a toothpick comes out clean or with moist crumbs.
- Cool the cakes in their pans for 5 minutes, then invert onto a rack and cool completely.
- Trim the cakes if needed, frost between the layers, then frost the top and sides. Store airtight.
Notes
Cool the cake layers completely before frosting so the buttercream stays smooth.