Chocolate Cake With Mayonnaise

The kitchen fell dead silent when I told my grandmother what I was putting in her birthday cake. She raised one eyebrow, wiped her flour-dusted hands on her apron, and asked if I had finally lost my mind. Three hours later, she was licking chocolate frosting off her fingers and demanding the recipe. Sometimes the most unlikely ingredients create the most magic.

I discovered this recipe during a college apartment dinner party when I realized I had no eggs but a lonely jar of mayonnaise in the fridge. My roommates watched with horrified fascination as I scooped dollops into the chocolate batter. That night, six people who claimed to hate mayonnaise fought over the last slice.

Ingredients

• All purpose flour: The structural backbone of your cake, sifting prevents any stubborn lumps from hiding in the batter
• Unsweetened cocoa powder: Choose a good quality brand here because cheap cocoa creates a dusty, lackluster chocolate flavor
• Baking powder and baking soda: Both leavening agents work together to give the cake its signature rise and tender texture
• Salt: Just a pinch wakes up all the chocolate flavors and prevents the cake from tasting flat or one note
• Regular mayonnaise: Full fat only, the oil and eggs already perfectly balanced inside create the most moist cake you will ever taste
• Granulated and brown sugar: The dual sugar approach gives you crispy edges and a fudgy, deep interior crumb
• Vanilla extract: Pure vanilla amplifies the chocolate notes without adding its own competing flavor
• Cold water: Surprisingly effective for creating a silky batter, though you can swap for cold brewed coffee to intensify the chocolate

Instructions

Preheat your oven and pans:

Set your oven to 350°F (175°C) and generously grease two 8-inch round pans with butter, then dust them with flour, tapping out any excess

Sift the dry ingredients together:

In a large bowl, sift flour, cocoa powder, baking powder, baking soda, and salt to ensure even distribution and prevent clumps

Whisk the mayonnaise mixture:

In a separate bowl, beat the mayonnaise, both sugars, and vanilla until completely smooth and no sugar crystals remain visible

Combine wet and dry ingredients:

Alternate adding the dry mixture and cold water to the mayonnaise blend, starting and ending with dry ingredients, mixing only until just combined

Bake to perfection:

Divide the batter evenly between your prepared pans and bake for 30 to 35 minutes until a toothpick emerges clean from the center

Cool completely before frosting:

Let the cakes rest in their pans for 10 minutes before turning them onto wire racks to cool completely, otherwise your frosting will melt right off

Pin It

My sister requested this cake for her wedding instead of an expensive bakery creation. We served it on mismatched vintage plates from our grandmother collection, and three guests asked for the cater information. Sometimes the most humble desserts create the most meaningful celebrations.

Making It Ahead

The unfrosted layers wrap beautifully and freeze for up to three months. I bake a double batch whenever I have a free weekend and stash the extras for emergency birthday situations or sudden chocolate cravings.

Frosting Options

A classic chocolate buttercream never fails, but I have also adored this cake with a tangy cream cheese frosting that cuts through the richness. For summer potlucks, a simple dusting of powdered sugar lets the chocolate shine without the sweetness overload.

Serving Suggestions

This cake needs nothing more than a cold glass of milk or a steaming cup of coffee. For dinner parties, I serve slightly warmed slices with a scoop of vanilla bean ice cream that melts into every crumb.

• Add a teaspoon of espresso powder to the frosting for a mocha variation
• Replace the water with cold brewed coffee to deepen the chocolate flavor
• Sprinkle flaky sea salt over the frosting for a sophisticated sweet and salty finish

Pin It

This recipe has converted more mayonnaise skeptics than I can count. Life is too short for dry cake.

Common Questions

→ Does mayonnaise make the cake taste like mayonnaise?

No, the mayonnaise completely dissolves into the batter. You'll only taste rich chocolate flavor and notice the incredibly moist, tender texture it creates.

→ Why use mayonnaise in chocolate cake?

Mayonnaise contains oil and eggs, two essential ingredients for cake baking. It creates an exceptionally moist crumb and tender texture while adding richness without any detectable savory flavor.

→ Can I use low-fat or light mayonnaise?

For best results, use regular full-fat mayonnaise. Low-fat versions may affect the moisture content and texture of the final cake.

→ How should I store this chocolate cake?

Store frosted cake at room temperature for up to 3 days, covered with a cake dome or plastic wrap. Unfrosted layers can be wrapped tightly and frozen for up to 3 months.

→ Can I make this as cupcakes?

Yes, fill lined muffin tins two-thirds full and bake for 20–22 minutes at 350°F. This yields approximately 18–24 standard cupcakes.

→ What frosting works best with this cake?

Classic chocolate buttercream or cream cheese frosting pair beautifully. For enhanced flavor, add brewed coffee to the batter or use coffee-infused frosting.