These substitutions all equal ONE EGG.
Ground flax 1 tablespoon ground flax + 3 tablespoons water
Chia seed 1 tablespoon chia seed + 1/3 cup water
Soy protein 1 tablespoon soy protein powder + 3 tablespoons water
Agar Agar 1 tablespoon agar agar + 1 tablespoon water
Ripe banana 1/2 mashed banana
Applesauce 1/4 cup unsweetened applesauce
Peanut butter 3 tablespoons peanut butter