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Flax Egg

Written by · Updated August 13, 2026

A flax egg, 1 tablespoon ground flaxseed plus 3 tablespoons water, rested until gel-like, is the classic vegan binder. Scale it below for your recipe.

To replace 1 egg
1 tbsp ground flaxseed + 3 tbsp water

Binding · Mix and rest 5 minutes until gel-like. Adds a subtle nutty flavor; a reliable all-rounder.

Other substitutes that work here

Chia egg vegan

1 tbsp chia seeds + 3 tbsp water

For 1 egg · Binding

Like a flax egg; gels in 5–10 minutes. Leaves tiny specks.

Unsweetened applesauce vegan

1/4 cup unsweetened applesauce

For 1 egg · Moisture

Great for moist, tender bakes. Reduce other sugar slightly; not for structure-heavy recipes.

Mashed banana vegan

1/4 cup mashed ripe banana

For 1 egg · Moisture

Adds moisture and a banana flavor, best where that’s welcome.

Blended silken tofu vegan

1/4 cup silken tofu, blended smooth

For 1 egg · Structure + moisture

Neutral flavor; good for dense, fudgy bakes. Blend until completely smooth.

Aquafaba (chickpea brine) vegan

3 tbsp aquafaba

For 1 egg · Leavening / airy

Whips like egg whites, the go-to for meringues and light, airy bakes.

Baking soda + vinegar vegan

1 tsp baking soda + 1 tbsp vinegar

For 1 egg · Leavening

Creates lift for light, fluffy cakes and cupcakes. No binding power.

Commercial egg replacer vegan

1 1/2 tsp egg-replacer powder + 2 tbsp water

For 1 egg · All-purpose

Follow the package, but roughly this per egg. Consistent across most recipes.

A flax egg is a simple plant-based swap for one egg: stir 1 tablespoon of ground flaxseed into 3 tablespoons of water and let it rest for about 5 to 10 minutes until it thickens to a gel. That gel mimics the binding power of an egg, which makes it ideal for muffins, pancakes, cookies, quick breads, and other bakes where the egg's main job is holding everything together.

Use ground flaxseed rather than whole seeds, since whole seeds won't gel; a quick whirl in a spice grinder works if you only have whole flax. The result has a mild, nutty flavor and adds a touch of fiber. Flax eggs shine as binders but provide little lift, so they're not the best pick for airy cakes or recipes needing several eggs for structure. Use the tool above to scale the amount when a recipe calls for more than one egg.

How to replace eggs in baking

Eggs do different jobs, binding, moisture and leavening, so the best substitute depends on what you’re making. Pick your recipe type above to see the swaps that work, with the exact amount per egg.

Which substitute for which job?

  • Binding (cookies, muffins, breads): flax or chia egg.
  • Moisture (cakes, brownies, quick breads): applesauce, mashed banana or yogurt.
  • Leavening / airy (meringues, light cakes): aquafaba, or baking soda + vinegar.
  • All-purpose: a commercial egg replacer is the most consistent.

Most substitutes work well up to 2–3 eggs. Beyond that, recipes that rely heavily on eggs (like sponge cakes) are harder to convert.

Frequently asked questions

How do you make a flax egg?

Mix 1 tablespoon of ground flaxseed with 3 tablespoons of water, then let it sit for 5 to 10 minutes until it forms a thick gel. That gel replaces one egg in most baking.

What recipes work best with a flax egg?

Flax eggs work best as a binder in muffins, cookies, pancakes, and quick breads. They add little lift, so they're less suited to light, airy cakes that rely on eggs for rise.

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