Onion powder is principally used for seasoning in cooking. It is made from finely ground dehydrated onions, mainly the pungent varieties of bulb onions, which causes the powder to have a very, very strong aroma.

Onion Powder is perfect as a seasoning, a condiment, dry rubs, and to keep on hand when you are out of fresh onions. Substitute one tablespoon onion powder for every medium onion called for in a recipe.