Also called dragon's eye, this native Southeast Asian fruit is small (about 1 inch in diameter) and round and has a thin brown shell. Inside is a translucent white, juicy-soft pulp that surrounds a large black seed. The perfumy flavor is delicate and sweet. Fresh longans can occasionally be found in Asian markets during July and August. They may be refrigerated in a plastic bag for up to 3 weeks. The easy-to-peel shell must be removed before eating. Dried and canned longans are available year-round. Longans are eaten as a snack and used in some Asian soups, sweet-and-sour dishes and desserts.