1 Tbsp. distilled white vinegar or apple cider vinegar + 1 tsp baking soda =1 egg
1 Tbsp. fine ground flax + 3 tsp. warm water + 10 minutes = 1 egg
1 Tbsp. chia seed + 1/3 cup water + 15 minutes = 1 egg (works best in brownies or breads because it makes more dense – not light and fluffy)