Shirataki noodles refers to a basic ingredient in the Japanese dish sukiyaki and is a type of noodle used in Vietnamese cooking. Shirataki noodles are thin, translucent and jelly-like, they are made from the starchy root of a plant known in Japan as devil's tongue. They have a crunchy texture, but little flavor and are available fresh or dried. The fresh kind must be stored in the refrigerator if not yet used