4. Aquafabia
Aquafabia is a classic option, and for good reason. For those who don’t know aquafabia is the liquid from canned chickpeas (don’t worry, it won’t make your bakes taste like chickpeas). Aquafabia is great for binding and even adds some leavening to your bake. Simply replace each egg with ¼ cup of aquafabia.
One of aquafabia’s best properties for baking is that it can whip up into stiff peaks just like egg whites, and can be used to make vegan merengue.