Unconventional Baking: Can Mayonnaise Replace Eggs in a Cake Mix?

When it comes to baking, eggs play a crucial role in providing structure, moisture and binding properties to cakes. But what if you’re in a situation where you’re out of eggs? Can mayonnaise be a suitable substitute? In this article, we embark on a culinary exploration to unravel the possibilities of using mayonnaise as an egg substitute in cake mixes. Join us as we delve into the world of unconventional baking and discover if this creamy condiment can rise to the occasion.

Understand the role of eggs in cake baking

Eggs serve several functions in cake baking. They act as a leavening agent, giving the batter a lift and adding moisture and richness to the finished product. Eggs also help bind ingredients together, resulting in a cohesive and tender texture. With these essential functions in mind, let’s explore how mayonnaise, with its unique composition, can potentially step in as a substitute.

Mayonnaise as an egg substitute: The pros and cons


  1. Moisture and richness: Mayonnaise, with its oil and egg content, can contribute to a moist texture in the cake. It helps retain moisture, resulting in a pleasantly tender and moist crumb.
  2. Allergen-friendly option: Mayonnaise can be a suitable substitute for those with egg allergies or dietary restrictions. Vegan or egg-free mayonnaise options are available, providing alternatives for those on vegan or egg-free diets.
  3. Convenience and availability: Mayonnaise is a common pantry staple, making it a convenient choice when you are without eggs. It’s readily available in most grocery stores, making it easily accessible for last-minute baking needs.


  1. Binding properties: While mayonnaise provides some binding due to its emulsified nature, it may not provide the same structural integrity as eggs. Cakes made with mayonnaise as a substitute may have a slightly different texture and crumb, possibly being denser or less light and fluffy.
  2. Flavor Influence: Mayonnaise has its own distinct flavor profile that can affect the overall taste of the cake. Depending on the recipe and desired flavor, the taste of mayonnaise may not work well with all types of cakes. It’s important to consider whether the flavor of the mayonnaise will complement or detract from the desired outcome.
  3. Texture differences: Cakes made with mayonnaise as an egg substitute may have a different texture than those made with eggs. The absence of eggs may result in slight variations in the rise, tenderness, and overall mouthfeel of the cake.
  4. Recipe adjustments: Replacing eggs with mayonnaise may require adjustments to other recipe components. For example, reducing the amount of liquid in the recipe to account for the moisture contributed by the mayonnaise.

It’s important to consider these pros and cons when deciding whether to use mayonnaise as an egg substitute in a cake mix. While it can be a convenient option in a pinch, be aware of the potential flavor and texture differences that may occur. Experimentation and personal taste preferences should guide your decision, ensuring the best possible outcome for your baking endeavors.

Adaptations and adjustments

If you decide to substitute mayonnaise for eggs in a cake mix, here are a few tips to consider:

  • Measure the mayonnaise: Replace each egg in the cake mix recipe with about 1/4 cup of mayonnaise. Adjust the amount as needed based on the number of eggs required.
  • Reduce other liquids: Since mayonnaise already contains moisture, you may need to reduce other liquids in the recipe slightly. This will help maintain the proper consistency of the batter.
  • Flavor Considerations: Keep in mind that the flavor of mayonnaise can affect the overall taste of the cake. If you’re concerned about potential flavor clashes, consider using mayonnaise in cake recipes where its flavor can complement or enhance the desired flavors.

The bottom line

While eggs play a critical role in baking, mayonnaise can be a viable substitute when circumstances call for it. With its moisture, richness and binding properties, mayonnaise can add a unique twist to your cakes. However, it’s important to consider the potential flavor impact and slight texture differences that can occur. Be adventurous, experiment and embrace the possibilities of unconventional baking. Whether you choose to substitute mayonnaise for eggs or explore other alternatives, remember that each substitution may yield a slightly different result. So grab your mixing bowl, gather your ingredients, and embark on a delicious baking adventure that pushes the boundaries of traditional recipes.


Can I substitute mayonnaise for eggs in a cake mix?

If you wish to use mayo in place of eggs, just substitute two or three tablespoons of mayo for every egg in the recipe. For oil, you will just replace the oil with mayo in the same quantity. If the recipe calls for one-third cup of oil, you will use one-third cup of mayo.

Can I use mayonnaise instead of eggs in a cake mix?

Can Mayonnaise be Substituted for Eggs with a Cake Mix? Yes. Three heaping teaspoons of mayo can be used for each egg called for in your cake mix.

Can you use mayo in box cake mix?

Adding mayonnaise, sour cream, yogurt, or melted ice cream to boxed cake mix can make the finished product moist and rich. Swapping out ingredients, like oil for butter or milk for water, will take a boxed cake to the next level. Things like coffee, soda, and spices will help to amplify the flavors in a boxed cake.

What happens if you add mayonnaise to cake mix?

Made from eggs and oil, which are pretty standard cake ingredients, mayonnaise will boost the moisture level in a cake recipe when added to the batter. It might even gussy up your boxed cake mix enough to taste homemade. While adding mayonnaise to dessert may sound odd, apparently this is an old-timey baking trick.

What can you substitute for eggs in a box cake mix?

How to Substitute Eggs in a Cake Mix

  • 1 – Vinegar and Baking Soda. One of the easiest replacements for eggs in a cake mix is a combination of vinegar and baking soda.
  • 2 – Applesauce.
  • 3 – Plain Yogurt.
  • 4 – Tofu.
  • 5 – Ripe Banana.
  • 6 – Protein Powder.
  • 7 – Flaxseeds.

How much mayonnaise do I substitute for eggs?

3 tablespoons

I used a substitution amount found on Allrecipes: 3 tablespoons of mayonnaise in place of 1 egg.

How do you substitute mayonnaise for eggs and oil in a cake mix?

If you wish to use mayo in place of eggs, just substitute two or three tablespoons of mayo for every egg in the recipe. For oil, you will just replace the oil with mayo in the same quantity. If the recipe calls for one-third cup of oil, you will use one-third cup of mayo.