Go Back
chocolate cake

The Ultimate Chocolate Cake

This is the only chocolate cake recipe you'll ever need! Incredibly moist, intensely chocolaty, and amazingly simple with a one bowl method. Topped with lush chocolate buttercream, it's perfect for birthdays and celebrations.
Prep Time 20 minutes
Cook Time 35 minutes
Cooling Time 1 hour
Total Time 1 hour 55 minutes
Course Dessert
Cuisine American
Servings 12
Calories 351 kcal

Ingredients
  

For the Cake:

  • 1 3/4 cups all purpose flour
  • 3/4 cup unsweetened cocoa powder
  • 1 1/2 tsp baking powder
  • 1 1/2 tsp baking soda
  • 1 tsp salt
  • 2 cups granulated sugar
  • 2 large eggs at room temperature
  • 1 cup milk
  • 1/2 cup vegetable oil
  • 2 tsp pure vanilla extract
  • 1 cup boiling water

For Frosting:

  • 1 1/2 batches Chocolate Buttercream Frosting

Instructions
 

  • Preheat oven to 350°F (180°C). Grease two 9-inch round cake pans and line the bottoms with parchment paper.
  • In a large bowl, sift together the flour, cocoa powder, baking powder, and baking soda. Whisk in the sugar and salt.
  • Add the eggs, milk, oil, and vanilla extract to the dry ingredients. Whisk for about 30 seconds until smooth and combined.
  • Carefully pour in the boiling water and whisk until the batter is smooth. It will be very thin.
  • Divide the batter evenly between the prepared pans. Bake for 30-35 minutes, or until a skewer inserted into the center comes out clean.
  • Let cakes cool in pans for 10 minutes. Then, invert onto a wire rack, flip right side up, and allow to cool completely before frosting.
  • Frost the cooled cake layers with Chocolate Buttercream Frosting.

Notes

  • Batter: The thin batter is normal. Pour slowly into pans.
  • Pans: For springform pans, place a baking sheet on the rack below to catch potential drips. For other pan sizes (like a 9x13" or Bundt), adjust baking time (see blog post for guides).
  • Cooling: Cakes must be completely cool before frosting to prevent melting.
  • Storage: Store in an airtight container at room temperature for up to 3 days, or refrigerate if frosted and in a warm climate.