Chocolate Mayonnaise Cake

I was a little surprised when my bestie requested a Chocolate Mayonnaise Cake for her birthday this year. I thought it was a bit of a weird cake request. But then I got to thinking and it started to make sense...

This old fashioned mayonnaise cake was something we grew up with and therefore it's comfort food. It's also a rich and delicious, decadent cake, so why wouldn't you want it for your birthday? But it made me wonder: why put mayonnaise in a cake?

Jump to:

• 💭Chocolate Mayonnaise Cake History
• 🥘 Ingredients
• 🎂Cake Frosting for Mayonnaise Cake
• 🍽Equipment
• 🌡️Storage
• 👪 Serving Size
• 💭TIPs for a perfectly crumb-free frosted cake
• ⭐ Reviews
• 📋 Chocolate Mayonnaise Cake Recipe
• 🍰 More Chocolate Cake Recipes!

This easy old fashioned Mayonnaise Cake uses mayonnaise in the batter to replace the eggs and oil for a rich and delicious chocolate cake that's super moist. It's perfect for birthday parties, a special occasion or any celebration!

This cake has been around a long time; long before my childhood. And in my experience, I've noticed it's the good recipes that tend to stick around; it has stood the test of time. I found a copy of  the recipe tucked away in my recipe binder from 2002, although this cake has been in existence since at least the 1930's. I'm not sure where it originally came from (likely someone at work) but the note on it said they got it from their Dad; it was a cake his Mom used to make during the Great Depression.

💭Chocolate Mayonnaise Cake History

When the Great Depression hit North America families were forced to stretch their budgets and “make do” with minimal and cheaper ingredients when it came to cooking. Dessert became a luxury for most and affordability was achieved through ingredient substitution. For example, shortening was substituted for butter, water was substituted for milk, and baking powder was substituted for eggs. Since mayonnaise replaced several ingredients in a cake, it just made sense! This cake was also very popular during the second world war when again, certain foods were scarce due to rationing.

🥘 Ingredients

So why put mayonnaise in a cake?  Mayonnaise is thick and rich and serves as a great substitute for several ingredients. Specifically, it does the job of the eggs, which is to hold everything together in a cake. And it replaces the oil, which like butter, serves to keep the cake tender. Mayonnaise also has salt in it. Water is used in place of the milk to make this cake more economical, as milk is obviously more expensive. And since milk's most important role in baking a cake is the part it plays in making the batter wet enough for the chemical reactions to take place, replacing milk with water during hard economic times was a no-brainer.

So why do we still eat chocolate mayonnaise cake today if we aren't dealing with scarcity, rationing and severe poverty? Well, because not only is this cake pure comfort food for those of us that grew up with it, it's rich, moist, delicious, easy and budget- friendly! In other words, why wouldn't we eat chocolate mayonnaise cake?!

For this old fashioned mayonnaise cake recipe, you'll need:

• all-purpose flour
• baking soda
• white granulated sugar
• unsweetened cocoa powder
• mayonnaise * I use Hellman's, but you could substitute Miracle Whip and use light/low-fat or full-fat mayonnaise
• water
• baking powder
• vanilla extract
• Frosting recipe:  Chocolate Whipped Buttercream recipe

*see recipe card for quantities

When I first mentioned mayonnaise cake to my family, honestly, they weren't all that keen on it. Yet the mayonnaise gives the cake such an unexpected decadent, rich and moist texture that when my family tasted this cake, all their negative preconceived notions dissipated -they LOVED this cake!

🎂Cake Frosting for Mayonnaise Cake

Finding the ideal frosting/icing for a cake is an art in and of itself. It really can make or break a cake. I used my Chocolate Whipped Cream Buttercream Frosting because it's the lightest, airiest and not-too-sweet homemade frosting you'll ever taste! And it has no butter, as butter was a luxury and not something that would have been used in cake frosting during that era anyway. But most importantly, chocolate frosting is the perfect pairing for this cake and this one is my personal go-to icing. 

You simply replace a little of the powdered/icing sugar with cocoa and voila! you have the best chocolate frosting ever!

I also love this Chocolate Frosting (without butter) as it's a little quicker and easier to make!

The very best part of this easy recipe it that it's simple to make and there's no fancy decorating required!

🍽Equipment

You'll need two 9-inch round cake pans. (affiliate link) and an electric mixer for this chocolate mayonnaise cake recipe.

🌡️Storage

Store this chocolate cake recipe at room temperature in a airtight container for up to 3 days, if you are using a non-perishable frosting (like my Chocolate Frosting (without butter) Freeze it in a sealed container for up to 3 months if it lasts longer than that!

👪 Serving Size

This homemade chocolate mayonnaise cake makes 12 servings. However, you can half, double or triple the recipe by clicking on the blue serving number and selecting the number of servings you'd like. The ingredient quantities will automatically adjust. You'll just need additional cake pans.

💭TIPs for a perfectly crumb-free frosted cake

To avoid crumbs in your icing:

1. Use Wilton cake release (see NOTES) 
2. Brush your crumbs off  the cake with a pastry brush before icing it
3. Put it in the freezer for 10 minutes BEFORE you frost but AFTER you do a crumb coat.
4. Use a flat spatula and be sure to use generous amounts of icing when frosting the cake.. * Don't worry about smoothing it for this cake, it's meant to have a casual swirled look. You can see how to do that by clicking HERE.

If you're looking for more chocolate birthday cake ideas, check out my Genoise Chocolate Sponge Cake!

This chocolate mayo cake is perfect any time of the year.

⭐ Reviews

Did you love this chocolate mayonnaise cake? IF so, please leave a 5 star rating and comment below!

🍰 More Chocolate Cake Recipes!

• Old Fashioned Sour Cream Chocolate Fudge Cake
• Chocolate Italian (Genoise) Sponge Cake with berries
• Microwave Chocolate Banana Mug Cake
• Root beer Float Cake
• Red Wine Strawberry Chocolate Fudge Cake