Aquafaba, or chickpea brine, is the liquid from canned chickpeas, used as an egg substitute because of its function as an emulsifier, leavening agent, and foaming agent.Vegan baker Goose Wohlt coined the term aquafaba ("bean liquid") to describe the liquid, which French chef Joël Roessel discovered could be used in recipes much like egg whites.Aquafaba has been used to create meringues, macarons, nougat and other products that normally require the use of eggs, making them suitable for vegans, lacto-vegetarians, and people with egg allergies.There is currently no scientific consensus on the chemical properties of aquafaba and why it mimics egg whites so effectively.