Sea cucumber has a mild, slightly fishy taste with a slippery, gelatinous texture. It is commonly used in Asian cuisine, particularly in Chinese, Japanese, and Korean dishes. Sea cucumber is often dried and rehydrated before cooking. It can be used in soups, stews, stir-fries, and braised dishes. To prepare, soak dried sea cucumber in water until soft, then boil it to remove any residual fishy smell.