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Close up of Chocolate Mayo Cake with a Corner Section Removed.
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4.74 from 19 votes

Chocolate Mayonnaise Cake

This 7 ingredient Chocolate Mayo Cake is moist, simple, and tastes divine!
Prep Time10 minutes
Cook Time30 minutes
Total Time40 minutes
Course: Dessert
Cuisine: American
Keyword: mayo cake, mayonnaise cake
Servings: 9
Calories: 362kcal
Author: Amanda Rettke--iambaker.net

Ingredients

Cake

  • 2 cups (256 g) all-purpose flour
  • 1 cup (200 g) granulated sugar
  • 6 tablespoons (44 g) cocoa powder
  • 2 teaspoons baking soda
  • 1 cup (237 g) water
  • 1 cup (232 g) mayonnaise
  • 1 teaspoon vanilla extract

Instructions

Cake

  • Preheat oven to 350°F. Spray a 9x9-inch baking dish with nonstick cooking spray.
  • In a medium mixing bowl, whisk together the flour, sugar, cocoa powder, and baking soda.
  • Add the water, mayonnaise, and vanilla. Mix until evenly combined. 
  • Pour the batter into the prepared baking pan. Bake for 25-30 minutes, or until a toothpick comes out mostly clean.
  • Let the cake cool in the pan for 10-15 minutes before transferring it to a wire rack to cool completely.

Video

Notes

For a delicious frosting option, check out my Brownie Frosting to spread over the cake. I tripled the brownie frosting recipe for this Chocolate Mayo Cake.

Nutrition

Serving: 9g | Calories: 362kcal