Homemade Vegan Mayonnaise in less than a minute (recipe below). The quickest way to make any mayonnaise, really. The only thing to keep in mind is that the less aquafaba:oil you use, the thicker the mayonnaise will be. If you’ve never heard of aquafaba, it’s simply the liquid left after cooking chickpeas. So most commonly, you can just use the liquid from a tin (I’ve used Eat Wholesome). During the cooking process, the water absorbs some of the protein, giving it similar qualities to that of egg