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A close-up of a Chocolate Mayonnaise Cake slice with a smooth chocolate frosting, placed on a beige plate.

Chocolate Mayonnaise Cake

A timeless, moist Chocolate Mayonnaise Cake with a creamy mayonnaise twist.
4 from 1 vote
Prep Time 20 minutes
Cook Time 30 minutes
cooling time 20 minutes
Total Time 1 hour 10 minutes
Servings: 12 Slices
Calories: 571kcal
Course: Cake, Dessert
Cuisine: American
Keyword: chocolate cake, Chocolate Mayonnaise Cake, easy chocolate cake, mayonnaise cake, retro cake
Cost: $10

🛒 Ingredients

Cake:

  • 2 cups flour All-purpose flour works best
  • cup unsweetened cocoa powder Gives the cake a rich chocolate flavor
  • 1 ¼ teaspoons baking soda Ensure it's fresh for proper rise
  • ¼ teaspoon baking powder Helps the cake rise along with the soda
  • 3 eggs Room temperature eggs will blend better
  • 1 ⅔ cups sugar White granulated sugar for sweetness
  • 2 teaspoons vanilla Use pure vanilla extract for best flavor
  • 1 cup mayonnaise Use a high-quality mayonnaise such as Hellmann's or Best Foods not Miracle Whip
  • 1 ⅓ cups cold coffee Cold brewed coffee enhances the chocolate flavor

Frosting:

  • 10 ounces semisweet chocolate chopped Choose good-quality chocolate for smooth frosting
  • 1 ½ cups 3 sticks butter room temperature Softened butter mixes easier
  • 3 cups powdered sugar Sifted to avoid lumps
  • 1 tablespoon vanilla Adds depth to the frosting flavor

📋 Instructions

  • Preheat your oven to 350°F (175°C). Grease two 9-inch cake pans, line them with parchment paper, and grease the paper.
  • In a medium bowl, whisk together the flour, cocoa powder, baking soda, and baking powder. set aside.
  • In a large mixing bowl, beat the eggs, sugar, and vanilla at high speed for about 3 minutes, until light and fluffy.
  • Reduce the speed to low and beat in the mayonnaise until fully incorporated.
  • Alternately add the flour mixture and cold coffee to the bowl, starting and ending with the flour mixture. Divide the batter evenly between the prepared pans.
  • Bake for 26-30 minutes, or until a toothpick inserted into the center of the cakes comes out clean.
  • Let the cakes cool in the pans for about 20 minutes before transferring them to a wire rack to cool completely.
  • Place the chopped semisweet chocolate into a microwave-safe bowl and heat in 20-second intervals, stirring in between until fully melted and smooth.
  • Allow the melted chocolate to cool to lukewarm while stirring occasionally.
  • In a large bowl, beat the softened butter until smooth and creamy.
  • Sift the powdered sugar over the butter and beat until fully combined, about 2 minutes.
  • Add the cooled melted chocolate to the mixture and beat until smooth, scraping the bowl as necessary.
  • Frost the cooled cakes with the chocolate frosting as desired.

📝 Notes

This cake is perfectly rich and moist, thanks to the surprising addition of mayonnaise. The frosting is smooth, decadent, and simple to make.

🥗 Nutrition

Serving: 1g | Calories: 571kcal | Carbohydrates: 89g | Protein: 6g | Fat: 23g | Saturated Fat: 7g | Polyunsaturated Fat: 15g | Cholesterol: 54mg | Sodium: 569mg | Fiber: 3g | Sugar: 68g | Calcium: 2mg | Iron: 8mg