Best Substitutes for Egg
Eggs bind ingredients, add moisture, create structure, and trap air. One large egg weighs 50g total: 33g white, 17g yolk. The white is 90% water plus proteins that coagulate at 140-149F. The yolk is 50% water, 30% fat, 20% protein, setting at 149-158F.
Each substitute handles only some of these jobs. Flax eggs bind but don't leaven. Aquafaba whips but won't emulsify like yolk. Pick based on what the egg does in your specific recipe.
Binding needs moisture plus something sticky. Leavening needs air incorporation or chemical reaction. Structure requires proteins that set when heated.
Best Overall Substitute
Flax egg at 1:1 ratio. Mix 1 tablespoon ground flaxseed with 3 tablespoons water, let sit 5 minutes until thick. Works in 80% of baking recipes where eggs bind and add moisture. Costs $0.08 per egg equivalent vs $0.25 for a real egg.
All Substitutes
Flax egg
1 tablespoon ground flaxseed + 3 tablespoons water per eggGround flax releases mucilage when mixed with water, creating a gel that binds like egg whites. The mixture thickens to egg-white consistency in 5 minutes. Adds 37 calories, 3g fat, 2g fiber per egg replaced. Won't whip or create rise. The nutty flavor shows in delicate cakes but disappears in chocolate or spiced items. Golden flax has milder flavor than brown.
Aquafaba
3 tablespoons per eggThe liquid from canned chickpeas contains proteins and starches that mimic egg whites. Whips to soft peaks in 3-5 minutes, stiff peaks in 10-15 minutes. Use liquid straight from the can at room temperature. Reduces to 80% volume when baked. No bean flavor remains after cooking. Save the liquid when making hummus.
Applesauce
1/4 cup per eggPectin in applesauce binds ingredients while adding moisture. Makes baked goods denser and chewier since it can't trap air. Reduces browning by 25% due to lower protein content. Unsweetened versions add 25 calories per egg replaced. The apple flavor is noticeable in vanilla cakes but masked by chocolate or cinnamon.
Mashed banana
1/4 cup per eggBanana's starches and sugars bind while adding intense moisture. Use very ripe bananas (black spots covering 60%+ of peel). Adds 27 calories and distinct banana flavor that overpowers vanilla or delicate spices. Baked goods brown 30% faster due to extra sugars. Reduces shelf life by 1-2 days because of added moisture.
Greek yogurt
1/4 cup per eggYogurt's proteins coagulate when heated, creating structure. The acid (pH 4.5) activates baking soda for extra lift. Use full-fat plain yogurt at room temperature. Adds 35 calories and tangy flavor. Thins batters by 15%, so reduce other liquids by 1 tablespoon. Creates moister, denser texture than eggs.
Silken tofu
1/4 cup blended per eggBlend until completely smooth (30-45 seconds). The soy proteins coagulate at 185F, creating custard-like texture. Adds 20 calories and neutral flavor. Creates very moist, dense results. Works best in recipes with strong flavors that mask any soy taste. Refrigerated leftovers will be firmer than egg versions.
Cornstarch slurry
1 tablespoon cornstarch + 3 tablespoons water per eggCornstarch gelatinizes at 203F, creating binding power. Mix until no lumps remain. Creates glossy, slightly gummy texture in baked goods. No flavor impact. Best for recipes where eggs primarily bind rather than leaven. Reduces browning by 40% compared to eggs.
Commercial egg replacer
1.5 teaspoons + 3 tablespoons water per eggUsually contains potato starch, tapioca starch, and leavening agents. Creates similar binding to eggs with added lift from baking soda. Mix and let stand 1 minute before using. Adds 15 calories and no flavor. More reliable than homemade options but costs $0.35 per egg equivalent. Ener-G and Bob's Red Mill are common brands.
How to Adjust Your Recipe
Check oven temperature first. Egg substitutes often need 25F lower heat because they brown faster or set differently. Flax and chia eggs need 2-3 extra minutes baking time.
For recipes using separated eggs, match the function. Aquafaba replaces whites for whipping. Yogurt or applesauce replaces whole eggs for moisture. You can't replicate yolks' emulsifying power easily.
Cookie dough with egg substitutes spreads 20% more. Chill 30 minutes before baking. Add 1-2 tablespoons extra flour if needed.
Egg wash alternatives: brush with milk, cream, or olive oil for browning. Mix 1 tablespoon maple syrup with 2 tablespoons soy milk for shine plus color.
When Not to Substitute
Traditional French pastries need real eggs. Choux pastry (cream puffs, eclairs) requires eggs' specific protein structure to create hollow shells. Genoise and sponge cakes depend on whipped whole eggs for all their structure.
Ice cream and custard need egg yolks' lecithin for smooth texture. No substitute creates the same creamy mouthfeel. Hollandaise and mayonnaise require yolk's emulsifying power to bind oil and water.
Fresh pasta with eggs has completely different texture than eggless versions. The proteins create chewiness you can't replicate.
Frequently Asked Questions
Can I just leave eggs out of a recipe?
Only if the recipe uses 1 egg or less. Cookies with 1 egg for 3 dozen often work without it, just slightly crumblier. Add 1-2 tablespoons water to replace moisture. Recipes with 2+ eggs will fail without substitution. The structure collapses, creating dense, gummy results. Cakes become pudding-like. Always substitute in recipes where eggs are 10%+ of total weight.
What about chia eggs vs flax eggs?
Same ratio: 1 tablespoon ground chia + 3 tablespoons water per egg. Chia creates slightly thicker gel in 3 minutes vs flax's 5 minutes. Chia adds 60 calories and 4g fiber per egg replaced. Black chia seeds show as specks in light batters. White chia costs 40% more but stays invisible. Flax has nuttier flavor, chia is neutral. Both work identically for binding.
How do I substitute eggs in brownies specifically?
Use 1/4 cup applesauce per egg for fudgy brownies. The extra moisture enhances the dense texture. For cake-like brownies, use flax eggs to maintain some structure. Reduce baking time by 3-5 minutes since substitutes don't set the same way. Test with toothpick 5 minutes early. Greek yogurt (1/4 cup per egg) creates the richest flavor but adds tanginess.