It is an egg substitute which is a mix of potato and tapioca starch (no corn) and some leavening agents. Yes it is vegan, gluten-free, dairy free, yeast free, soy free, corn free, nut free. Ener-G is the most popular brand. Other brands are available in the market too and contains the same ingredients more or less. Learn more about Ener-G egg replacer here.
How to use it?
Each brand comes with instructions of its own. But in general you will have to whisk 1.5 teaspoons of the powder with 2-3 tablespoons of warm water, preferably for each egg to be replaced.
When to use it?
Over the years I have tried egg replacer powders in various recipes (see below) and I feel that it’s best suited in cookies, biscottis and sometime in cakes.
Where is it available?
These days it’s available in every big chain grocery stores, stores specializing in natural/organic products like Whole Foods, Trader Joe’s also carry it or get it online.