Wild onions were discovered and eaten as a staple of the diet in pre-historic times. Onions have been cultivated for 5000 years or more.Onion flakes are made from fresh onions which have been dried and finely chopped.Onion flakes can be used to replace fresh onions. 2 tablespoons of onion flakes are equivalent to ½ cup of chopped fresh raw onions.Onion flakes can be rehydrated in warm water or used as flakes added to casseroles and any slow cooked dishes. They are great added into savoury crumb mixes for coating chicken or beef.Onion flakes combined with cream cheese and a little cream or milk make a delicious onion dip.