First, what is the egg doing?
Match the job, not just the egg.
- Binding — holding cookies, muffins, and quick breads together.
- Moisture & richness — keeping cakes and brownies tender.
- Leavening — adding lift, especially in lighter bakes.
- Whipping — creating foam for meringues, macarons, and mousses.
A recipe with 1–2 eggs is usually about binding and moisture, and substitutes well. A recipe that leans on many whipped eggs for structure (sponge, angel food, popovers) does not.
The best substitute for each job (per egg)
| Job | Best swap | Amount |
|---|---|---|
| Binding | Flax or chia “egg” | 1 tbsp ground + 3 tbsp water, rested 5–10 min |
| Moisture | Unsweetened applesauce | ¼ cup |
| Moisture (sweet bakes) | Mashed banana | ¼ cup (≈ ½ banana) |
| Richness | Plain yogurt (not vegan) | ¼ cup |
| Whipping | Aquafaba (chickpea water) | 3 tbsp (2 tbsp per egg white) |
If a sub adds moisture but no lift, add ¼ teaspoon of baking powder per egg to keep the bake from turning dense.
Getting good results
- Stick to 1–2 eggs replaced. The more eggs a recipe has, the harder it is to substitute them all.
- Banana and applesauce add flavor and a little color — fine in spiced or chocolate bakes.
- Aquafaba is the only common swap that genuinely whips — use it for meringues and macarons.
- Commercial egg replacers are reliable and neutral if you bake egg-free often.