If you’ve never tried chocolate cake recipes with mayonnaise, you’re in for a delicious surprise. While it may sound unusual, mayonnaise has been a secret baking ingredient for decades. Since it’s made primarily from eggs and oil, it adds incredible moisture, richness, and a soft, tender crumb without leaving behind any mayonnaise flavor. This baking technique has been popular since the early 20th century and continues to be loved by home bakers today.

This easy chocolate mayonnaise cake is rich, deeply chocolatey, and perfect for birthdays, holidays, or whenever you’re craving a simple homemade dessert.

Why Use Mayonnaise in Chocolate Cake?

Many people wonder if mayonnaise belongs in dessert, but it actually works beautifully in baking.

Benefits of using mayonnaise

• Produces an extra moist cake
• Creates a soft, tender texture
• Replaces additional oil or butter
• Adds richness without making the cake greasy
• Helps the cake stay fresh longer
• You won’t taste the mayonnaise after baking

Because mayonnaise already contains eggs and oil, it naturally enhances the cake’s texture while simplifying the ingredient list.

Ingredients

For the Cake

• 2 cups all-purpose flour
• 2 cups granulated sugar
• ¾ cup unsweetened cocoa powder
• 2 teaspoons baking powder
• 1½ teaspoons baking soda
• 1 teaspoon salt
• 1 cup full-fat mayonnaise
• 1 cup buttermilk
• 2 large eggs
• 2 teaspoons vanilla extract
• 1 cup hot brewed coffee (or hot water)

Optional Chocolate Ganache

• 1 cup semi-sweet chocolate chips
• ½ cup heavy cream

Equipment Needed

• Large mixing bowl
• Whisk
• Electric mixer (optional)
• Measuring cups
• 9×13-inch baking pan or Bundt pan
• Cooling rack

How to Make Chocolate Cake with Mayonnaise

Step 1: Prepare the Oven

Preheat your oven to 350°F (175°C).

Grease and lightly flour your baking pan.

Step 2: Mix the Dry Ingredients

In a large bowl combine:

• Flour
• Cocoa powder
• Sugar
• Baking powder
• Baking soda
• Salt

Whisk until evenly blended.

Step 3: Combine the Wet Ingredients

In another bowl whisk together:

• Mayonnaise
• Buttermilk
• Eggs
• Vanilla extract

Mix until smooth and creamy.

Step 4: Make the Batter

Gradually combine the wet ingredients with the dry ingredients.

Slowly stir in the hot coffee.

The batter will be fairly thin—this is completely normal.

Step 5: Bake

Pour the batter into the prepared pan.

Bake for 30–40 minutes, or until a toothpick inserted in the center comes out with only a few moist crumbs.

Step 6: Cool

Allow the cake to cool for about 10 minutes before removing it from the pan.

Transfer to a wire rack and let cool completely.

Step 7: Add Chocolate Ganache

Heat the heavy cream until steaming.

Pour over the chocolate chips.

Let stand for 2 minutes before stirring until smooth.

Pour the glossy ganache over the cooled cake.

Why Coffee Makes Chocolate Taste Better

Coffee doesn’t make the cake taste like coffee.

Instead, it intensifies the cocoa flavor and gives the cake a richer, more complex chocolate taste. If you prefer, hot water can be substituted, although coffee provides the best results.

Tips for the Best Chocolate Cake Recipes with Mayonnaise

• Always use full-fat mayonnaise.
• Measure flour accurately to avoid a dry cake.
• Don’t overmix the batter.
• Use quality cocoa powder.
• Let the cake cool completely before glazing.
• Grease the pan thoroughly for easy release.

Flavor Variations

Try customizing your cake with these delicious additions:

• Chocolate chips
• Espresso powder
• Mini marshmallows
• Peanut butter swirl
• Chopped walnuts
• Toasted pecans
• Caramel drizzle
• Fresh raspberries

Storage Instructions

Store the cake in an airtight container at room temperature for up to 3 days.

For longer storage:

• Refrigerate for up to 1 week
• Freeze (without frosting) for up to 3 months

Wrap tightly in plastic wrap before freezing.

Nutrition (Approximate)

Per serving

• Calories: 330
• Carbohydrates: 54g
• Protein: 4g
• Fat: 12g
• Saturated Fat: 2g
• Fiber: 2g
• Sugar: 35g

Values vary depending on frosting used.

Frequently Asked Questions

Does mayonnaise make chocolate cake taste like mayonnaise?

No. During baking, the mayonnaise simply contributes moisture and richness. The finished cake tastes like a classic chocolate cake.

What type of mayonnaise should I use?

Full-fat mayonnaise works best because it contains the proper balance of oil and eggs for a moist texture.

Can I use Miracle Whip?

Regular mayonnaise is recommended. Miracle Whip has added sweetness and spices that can alter the flavor.

Can I make cupcakes?

Yes. Fill cupcake liners about two-thirds full and bake for 18–22 minutes.

Can I freeze chocolate mayonnaise cake?

Absolutely. Freeze the unfrosted cake for up to three months, then thaw overnight before frosting.

Final Thoughts

If you’re looking for chocolate cake recipes with mayonnaise that deliver unbeatable moisture and rich chocolate flavor, this recipe is a fantastic choice. The mayonnaise blends seamlessly into the batter, creating a soft, tender crumb that stays fresh for days. Whether topped with silky chocolate ganache, buttercream, or simply dusted with powdered sugar, this cake is sure to become a reliable favorite for family gatherings, celebrations, or everyday baking.