Egg Substitution Calculator

Egg substitution in baking requires understanding the functional role eggs play in a recipe, then selecting the right substitute to replicate that function. Eggs serve three distinct purposes — binding (holding ingredients together), leavening (adding lift), and moisture — and different substitutes excel at different functions.

Standard egg equivalents (per large egg = ~50 mL volume):

Binding substitutes (these are the ones in the calculator):

• Flax egg: 1 tbsp ground flaxseed + 3 tbsp water, left to sit 10 minutes until a gel forms
• Chia egg: 1 tbsp chia seeds + 3 tbsp water, 15 minutes (slower than flax, and it leaves specks)
• Applesauce: 3 tbsp (45 mL), best for moist quick breads
• Banana: 3 tbsp mashed, which is roughly a quarter of a medium banana
• Aquafaba: 3 tbsp (45 mL) of the liquid from canned chickpeas; also whips like egg whites

Moisture-and-fat substitutes (also in the calculator):

• Silken tofu, blended: 4 tbsp (¼ cup), excellent for dense cakes and brownies
• Yogurt: 4 tbsp (¼ cup); use a thick plant-based one if you are baking vegan

Leavening substitutes, for lift rather than binding:

These are not in the dropdown above, because they solve a different problem. If what the egg was doing in your recipe is making it rise, none of the binders will help and you want one of these instead:

• Baking soda + vinegar: 1 tsp baking soda + 1 tbsp vinegar per egg. Mix it in last, at the very end, and get the batter into the oven while it is still fizzing.
• Baking powder mix: 1 tsp baking powder + 1 tbsp water + 1 tbsp oil
• Carbonated water: 3 tbsp, which replaces the egg and some of the liquid at once

Multi-egg recipe scaling: Total Substitute Volume = Number of Eggs × Individual Substitute Quantity

Worked example: Chocolate cake recipe calls for 3 eggs. Replacing with flax eggs for vegan version:

• 3 tbsp ground flaxseed + 9 tbsp water
• Mix each tablespoon portion separately, allow 10 minutes to gel
• Add at room temperature when recipe calls for eggs

Texture expectations: Most substitutes produce slightly denser results than whole eggs. Aquafaba is the best egg-white replacer for meringue and macarons. Silken tofu is the gold standard for dense, fudgy baked goods.

Shelf life: Flax and chia eggs must be used immediately. Aquafaba can be refrigerated up to 5 days. Most substitutes perform best at room temperature.