Tom yum (Thai: ต้มยำ, IPA: , also sometimes romanized as tom yam or dom yam) is a soup originating from Thailand. It is perhaps one of the most famous dishes in Thai cuisine.Tom yum is characterized by its distinct hot and sour flavors, with fragrant herbs generously used. The basic broth is made of stock and fresh ingredients such as lemon grass, kaffir lime leaves, galangal, shallots, lime juice, fish sauce, tamarind, and crushed chili peppers.In Thailand, tom yum is usually made with prawns (tom yum goong), chicken (tom yum gai), fish (tom yum pla), or mixed seafood (tom yum talay or tom yum po taek) and mushrooms - usually straw or oyster mushrooms. The soup is often topped with generous sprinkling of fresh chopped coriander (cilantro) leaves.The less popular variety of tom yum is tom yum nam khon (Thai: ต้มยำน้ำข้น), where coconut milk is added to the broth. This is not to be confused with tom kha or tom kha gai - where the galanga flavor dominates the soup. Tom yum nam khon is almost always made with prawns, whereas chicken is often used in tom kha. Its other cousin is less well-known outside Thailand - tom klong. Sometimes Thai chili jam (Nam Prik pao, Thai: น้ำพริกเผา) is added: this gives the soup a bright orange colour and makes the chili flavor more pronounced.Commercial tom yum paste is made by crushing all the herb ingredients and stir-frying in oil. Seasoning and other preservative ingredients are then added. The paste is bottled or packaged, and sold around the world. Tom yum flavored with the paste may have different characteristics to that made with fresh herb ingredients. References in Popular CultureTom-Yum-Goong is also the title of a feature film released in Thailand. It stars native martial-arts actor Tony Jaa of Ong-Bak fame, and was later released in the United States under the title The Protector.Also regarding the South Thailand insurgency (Pattani), The Thai junta claimed that the insurgency is being financed by restaurants selling Tom Yam Kung soup in Malaysia. The Malaysian government called the claim "absolutely baseless," and "very imaginative."