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A slice of rich chocolate buttermilk cake with cocoa frosting on a white plate
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Chocolate Buttermilk Cake

A rich and moist chocolate cake made with buttermilk for a unique flavor and texture.
Prep Time20 minutes
Cook Time35 minutes
Total Time55 minutes
Course: Dessert
Cuisine: American
Keyword: Cake, Chocolate, Easy
Servings: 10 servings
Calories: 450kcal

Equipment

  • Oven
  • Mixing Bowl
  • Cake Pans
  • Whisk

Ingredients

For the Cake

  • 2 cups All-purpose flour
  • 2 cups Granulated sugar
  • 3/4 cup Unsweetened cocoa powder
  • 2 teaspoons Baking powder
  • 1.5 teaspoons Baking soda
  • 1 teaspoon Salt
  • 1 cup Buttermilk at room temperature
  • 1/2 cup Vegetable oil
  • 2 large Eggs at room temperature
  • 2 teaspoons Vanilla extract
  • 1 cup Hot water

For the Frosting

  • 1 cup Unsalted butter softened
  • 3.5 cups Powdered sugar
  • 1/2 cup Unsweetened cocoa powder
  • 1/2 cup Buttermilk at room temperature
  • 2 teaspoons Vanilla extract
  • 1 pinch Salt

Instructions

  • Preheat oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
  • In a large bowl, whisk together flour, sugar, cocoa powder, baking powder, baking soda, and salt.
  • In a separate bowl, mix buttermilk, oil, eggs, and vanilla extract.
  • Gradually add the wet mixture to the dry ingredients. Stir in hot water until smooth.
  • Divide batter between pans and bake for 30–35 minutes, or until a toothpick inserted comes out clean.
  • Cool in pans for 10 minutes, then transfer to wire racks to cool completely.
  • For the frosting, beat butter until creamy. Gradually add powdered sugar and cocoa powder.
  • Stir in buttermilk, vanilla, and salt until smooth and fluffy.
  • Frost cooled cake layers and stack. Decorate as desired.

Notes

Substitute buttermilk by adding 1 tbsp lemon juice or vinegar to 1 cup milk and letting it sit for 5 minutes. Store covered at room temperature for 2 days or refrigerate for up to 5 days.

Nutrition

Calories: 450kcal | Fat: 24g