The most common egg replacements and how they work
Eggs bind ingredients together, add moisture, and help cakes rise. When you leave them out, you need something that does at least one of those jobs. The best replacement depends on what you're baking and what you have on hand.
Applesauce works in most cakes because it adds moisture and binds ingredients. Use 1/4 cup unsweetened applesauce for each egg. The cake will be slightly denser and more moist than one made with eggs, but the texture is usually good. This works especially well in chocolate, spice, and fruit cakes.
Mashed banana replaces eggs the same way applesauce does—use 1/4 cup per egg. The banana flavor will show up in the finished cake, so this works best in chocolate cakes, carrot cakes, or anything with warm spices. Avoid it in vanilla or lemon cakes unless you want that banana taste.
Aquafaba (the liquid from a can of chickpeas) mimics eggs' ability to make cakes rise and creates a lighter crumb. Use 3 tablespoons per egg. Whip it with a mixer for a few minutes first to add air, then fold it into your batter gently. This is the closest substitute to real eggs in terms of final texture.
Flax or chia "eggs" bind ingredients and add structure. Mix 1 tablespoon ground flax or chia seed with 3 tablespoons water, let it sit for 5 minutes until it thickens, then use it as one egg. These work well in dense cakes like brownies or chocolate cakes but can make lighter cakes taste slightly grainy.
Yogurt or sour cream adds moisture and tang. Use 1/4 cup per egg. The cake will be tender and slightly tangy. This works in almost any cake but pairs especially well with vanilla, lemon, or berry flavors.
Key Takeaways
- Applesauce and mashed banana are the easiest replacements because they add moisture and bind ingredients without extra steps.
- Aquafaba (chickpea liquid) creates the lightest, most cake-like texture and is the best choice if you want a result closest to a traditional cake.
- Flax and chia seeds work but can make cakes taste slightly grainy, so they're better for dense cakes like brownies than for delicate vanilla cakes.
- Yogurt and sour cream add moisture and tang, so they work best in cakes where a slight sour flavor fits the recipe.
- Different replacements change the flavor and texture of your cake, so choose based on what cake you're making and what taste you want.
How to adjust your recipe when using a replacement
Most egg replacements add extra moisture to your batter, so you may need to adjust other ingredients slightly. If your cake batter looks thinner than it should, add 1 to 2 tablespoons of flour to thicken it. If it looks too thick, add 1 tablespoon of milk or water.
Baking time usually stays the same, but check your cake a few minutes earlier than the recipe says. Cakes made with egg replacements sometimes bake faster because the batter is wetter. A toothpick inserted in the center should come out clean or with just a few moist crumbs.
The first time you use a replacement in a recipe you've never tried before, write down what you changed and how the cake turned out. This helps you know whether to adjust the amount next time.
Replacements that don't work well in cakes
Some common egg substitutes work in cookies or quick breads but fall flat in cakes. Cornstarch and arrowroot powder don't add enough moisture or binding power for a tender cake. Oil alone won't bind ingredients the way eggs do, so the cake will be crumbly.
Silken tofu can work if you blend it smooth, but it often leaves a slightly grainy texture in cakes and can make them taste flat. It's better suited to brownies or dense chocolate cakes where the flavor won't be as noticeable.
Avoid trying to replace eggs with just extra liquid like milk or juice. Without something to bind the ingredients, the cake won't hold together properly.
Baking soda and acid combinations for extra lift
If your cake recipe calls for more than two eggs, you may want to add a small amount of baking soda and an acid to help the cake rise. Mix 1 teaspoon of baking soda with 1 tablespoon of lemon juice or vinegar, let it sit for a minute until it foams, then stir it into your batter right before pouring it into the pan.
This combination creates carbon dioxide bubbles that help the cake rise, replacing some of what eggs would do. It works especially well with applesauce or banana replacements. Don't add more than this amount, or the cake may taste soapy.
Comparing replacements at a glance
| Replacement | Amount per egg | Best for | Flavor impact |
|---|---|---|---|
| Applesauce | 1/4 cup | Most cakes | Mild or none |
| Mashed banana | 1/4 cup | Chocolate, spice cakes | Noticeable banana flavor |
| Aquafaba | 3 tablespoons | Any cake (closest to eggs) | None |
| Flax or chia "egg" | 1 tablespoon ground + 3 tablespoons water | Dense cakes, brownies | Slightly nutty or none |
| Yogurt or sour cream | 1/4 cup | Vanilla, lemon, berry cakes | Slight tang |
What happens if you just leave eggs out
Leaving eggs out without replacing them usually results in a cake that doesn't rise well and falls apart when you try to remove it from the pan. The crumb will be dense and crumbly instead of tender and moist. The cake may also taste dry even if the batter looked wet.
Some very straightforward recipes—like a basic oil cake or a dump cake—can work with fewer eggs than usual, but most traditional cake recipes need something to replace them. If you're experimenting, start by replacing just one egg and see how the cake turns out before replacing all of them.
Frequently Asked Questions
Can I use mayonnaise as an egg replacement in cake?
Yes, mayonnaise can replace eggs because it contains eggs and oil. Use 1/4 cup per egg. The cake will be very moist and tender, but the flavor may be slightly off unless you're making a chocolate cake where the cocoa masks it. This works better in brownies than in delicate cakes.
What if I don't have any of these replacements on hand?
Mashed banana and applesauce are the most common, but if you have neither, try mashing a ripe avocado (1/4 cup per egg) or using plain yogurt if you have it. Avoid trying to bake without any replacement, as the cake won't hold together.
Do egg replacements change how long the cake stays fresh?
Cakes made with applesauce, banana, or yogurt often stay moist longer than cakes made with eggs because these replacements hold moisture. Store them in an airtight container at room temperature for up to three days, or refrigerate for up to a week.
Can I use egg replacements in a box cake mix?
Yes. Follow the box instructions but swap the eggs for your replacement using the amounts listed above. You may need to add 1 to 2 tablespoons of flour if the batter looks too thin. Bake time usually stays the same, but check a few minutes early.
Will the cake taste like the replacement I use?
Applesauce and aquafaba are nearly flavorless. Banana and yogurt add a noticeable taste, so choose them only if that flavor fits your cake. Flax and chia add a subtle nutty flavor that most people don't notice in chocolate cakes.