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A fork taking a slice out of a mayonnaise cake

Chocolate Mayonnaise Cake

5 from 17 votes
Servings 12 servings
Prep: 10 minutes
Cook: 30 minutes
Total: 40 minutes
Rich, delicious and easy to make, Chocolate Mayonnaise Cake is a classic that your friends and family will love.

Ingredients
 

Chocolate Mayonnaise Cake

  • 2 cups all-purpose flour
  • 2/3 cup unsweetened cocoa powder
  • 1 1/4 teaspoons baking soda
  • 1/4 teaspoon baking powder
  • 1/4 teaspoon salt
  • 1 2/3 cups sugar
  • 3 eggs
  • 1 teaspoon vanilla extract
  • 1 cup mayonnaise
  • 1 1/3 cups water

Chocolate Frosting

  • 1/2 cup butter (melted)
  • 2/3 cup unsweetened cocoa powder
  • 3 cups powdered sugar
  • 1/3 cup heavy cream (or heavy whipping cream (half and half or milk can also be used))
  • 1 teaspoon pure vanilla extract
  • pinch salt

Instructions
 

Chocolate Mayonnaise Cake

  • Preheat oven to 350 degrees F. Grease and flour two 9 inch round cake pans. Set aside.
  • In a medium bowl, combine flour, cocoa powder, baking soda, baking powder and salt, then set aside.
  • In a large bowl, combine sugar, eggs and vanilla. Beat with an electric mixer for approximately 3 minutes or until light and fluffy. Add mayonnaise to the mixture and beat on low for approximately 1 minute.
  • Add flour mixture to the sugar mixture, in three additions, alternating with adding the water, stirring well between each addition. Pour into prepared baking pans.
  • Bake for 30-35 minutes or until a toothpick inserted into the center of the cake comes out clean. Allow to cool in pans for 10 minutes, then remove from pans and cool on wire racks.
  • Cool completely prior to frosting.

Chocolate Frosting

  • Combine melted butter and cocoa and mix until butter and cocoa have combined. This may take a bit of stirring as cocoa powder sometimes doesn't combine with liquids easily.
  • Next, using an electric mixer, alternately add powdered sugar and cream, beating until light and fluffy. Add in vanilla and mix well.
  • Add an extra teaspoon of cream if a thinner consistency is desired. If frosting seems too thin, add additional powdered sugar, one tablespoon at a time until desired consistency is reached. Spread onto cooled cake.

Notes

Nutrition info is for cake only, as frosting is optional. For nutritional information for the frosting, visit the Chocolate Frosting Recipe page.
The frosting recipe can be doubled if a thick coating of frosting is desired. As written it will provide a thin layer of frosting. 
Storage – This chocolate mayonnaise cake can be stored covered, at room temperature, for approximately five days. If you are saving it any longer than that, I highly recommend freezing it.

Nutrition

Calories: 337kcalCarbohydrates: 47gProtein: 5gFat: 16gSaturated Fat: 3gPolyunsaturated Fat: 9gMonounsaturated Fat: 4gTrans Fat: 0.04gCholesterol: 49mgSodium: 300mgPotassium: 123mgFiber: 2gSugar: 28gVitamin A: 72IUCalcium: 22mgIron: 2mg

The nutrition facts provided are calculated using a third-party tool and are estimates only. Actual nutritional content may vary based on the ingredients and brands you use, as well as portion sizes. For accurate results, please consult a registered dietitian or nutritionist.

Course Dessert
Cuisine American