Onion flakes are made from fresh onions which have been minced and dehydrated. Onion flakes can be used to replace fresh onion in soups, stews and other cooked foods and make a good emergency pantry staple.
Onion flakes, or dried minced onion is a pretty common grocery store item. Look for it in the spice isle. McCormick is a reliable brand. If you prefer to shop onion you can purchase this product on Amazon.com: Onion Flakes