Saffron threads as they are also called are orange-red dried stigmas of a small purple flower called the Crocus Sativus. Saffron’s aroma is unique and there is no substitute for it. It is used in cooking to flavor and color the dish a wonderful golden yellow color. In Indian cooking it is highly prized and added to many Indian sweets and “special occasion” savory dishes like Biryani, Pulaos and even some curries.