What is the best egg substitute for baking?

It depends on what the egg does in the recipe. For binding in cookies and loaves, a flax egg (1 tbsp ground flaxseed + 3 tbsp water, rested 10 minutes) scores highest. For lift in cakes and muffins, aquafaba (3 tbsp chickpea brine per egg) or baking soda plus vinegar works best. For versatility across most baked goods, a commercial egg replacer is the safest choice.

How do you make a flax egg?

Stir 1 tablespoon of ground flaxseed into 3 tablespoons of cold water. Leave it for 5 to 10 minutes until the mixture becomes thick and gel-like — it is then ready to use in place of one egg. Ground (milled) flaxseed works far better than whole seeds because it releases more of the mucilage that creates the binding gel.

Can you use aquafaba instead of egg white?

Yes. Aquafaba is the strained liquid from a can of cooked chickpeas. It contains proteins and starches that mimic egg-white behaviour remarkably well. Use 2 tablespoons to replace one egg white, or 3 tablespoons to replace one whole egg. It can be whipped to stiff peaks for meringues, macarons and mousses.

How much applesauce replaces one egg?

Use 60 g (approximately one quarter cup) of plain, unsweetened applesauce per egg. It adds moisture and mild binding but very little lift, so it works best in moist baked goods such as muffins, carrot cake and quick breads rather than in airy sponge cakes.

Does banana work as an egg substitute?

Yes, when its flavour is welcome. Mash about 65 g of a very ripe banana (roughly half a medium banana) to replace one egg. It adds moisture and some binding but no leavening. The flavour is noticeable, so it suits banana bread, chocolate cake and spiced muffins well, but not neutral-flavoured bakes.

What egg substitute is best for someone with both a soy and nut allergy?

Flax egg, chia egg, applesauce, ripe banana, baking soda plus vinegar and pumpkin puree are all free from soy, nuts and dairy. Tick the allergen-free filter in the calculator to see only these options. Always check commercial egg replacer labels, as formulations vary by brand.

Egg Substitute Calculator

Eggs perform several distinct jobs in cooking and baking at the same time: they bind ingredients together, add structural lift through their proteins, contribute moisture and richness, and emulsify fats and liquids. No single substitute replicates all of those functions perfectly, but the right choice for your recipe can get very close. This calculator takes the number of eggs you need to replace, the role those eggs play (binding, leavening, or both), and any dietary requirements, then gives you scaled quantities and step-by-step preparation notes for every suitable substitute.

How it works

Each substitute is scored from 1 to 5 on two axes:

Binding / structure — how well it holds a bake together, preventing crumble. High-binding substitutes are essential in cookies, veggie burgers, meatloaves and dense quick breads.
Leavening / lift — how much it helps the bake rise. High-leavening substitutes matter in layer cakes, cupcakes, muffins and anything that needs an open, airy crumb.

Select the purpose your eggs serve, apply vegan-only or allergen-free filters, then choose a substitute. The calculator multiplies the per-egg quantity by however many eggs you need and shows exact preparation instructions. You can also click any row in the comparison table to jump straight to that substitute’s detail.

Worked example

A chocolate chip cookie recipe calls for 2 large eggs. The eggs provide binding (holding the cookie together) more than lift. Selecting “Binding / structure” and “Vegan only” narrows the list. Choosing flax egg:

Quantity: 2 × (1 tbsp ground flaxseed + 3 tbsp water)
That is 2 tbsp ground flaxseed in 6 tbsp water total.
Stir well and rest for 5–10 minutes until each batch turns into a thick gel.
Add to the dough as you would the eggs.

A chocolate muffin recipe calling for 3 eggs and needing good rise: select “Leavening / lift”. Aquafaba (3 tbsp per egg = 9 tbsp total, about 135 ml) works well and adds no flavour. Alternatively, baking soda + vinegar (3 tsp baking soda in the dry mix, 3 tbsp vinegar in the wet mix) gives a powerful chemical rise — use immediately after combining wet and dry.

Substitute reference

Substitute	Binding	Leavening	Vegan
Flax egg	4/5	2/5	Yes
Chia egg	4/5	2/5	Yes
Aquafaba	3/5	5/5	Yes
Unsweetened applesauce	3/5	1/5	Yes
Ripe banana	3/5	1/5	Yes
Baking soda + vinegar	1/5	5/5	Yes
Silken tofu	5/5	1/5	Yes (soy)
Plain yogurt	3/5	2/5	Dairy version no
Pumpkin puree	3/5	1/5	Yes
Commercial replacer	4/5	3/5	Yes (check label)

Formula note

There is no single mathematical formula for egg substitution — the quantities are based on the average volume of a large egg (roughly 50 g of liquid) matched to each substitute’s water-absorption and gel-forming properties. A flax or chia gel at a 1:3 seed-to-water ratio produces approximately 4 tablespoons (60 ml) of viscous gel, closely matching the liquid and binding contribution of one large egg. Aquafaba at 3 tablespoons (45 ml) matches egg-white volume. For moisture-based substitutes (applesauce, banana, pumpkin) the standard quantity is 60 g (approximately one quarter cup), which matches the liquid content of a shelled large egg.

All calculations run entirely in your browser — nothing is uploaded or stored.