"Hot and sour soup" is a Chinese soup claimed variously by the regional cuisines of Beijing and Sichuan as a regional dish. The Chinese hot and sour soup is usually meat-based, and often contains ingredients such as day lily buds, wood ear fungus, bamboo shoots, and tofu, in a broth that is sometimes flavored with pork blood. It is typically made hot (spicy) by red peppers or white pepper, and sour by vinegar.
Samlor machu pkong or "Sour Shrimp Stew" is a Cambodian sour soup flavored with lemon, chilis, prawns and/or shrimp. One of the most popular sour soups in Cambodia, it is eaten most often on special occasions.
Samlar machu yuan or "Vietnam sour soup" is another common hot and sour soup of Cambodia originating among the Khmer Krom of the Mekong Delta region (hence, the name). It is made with fish, usually mudfish, walking catfish or tilapia, that has first been fried or broiled then added to the broth. Chicken may also be substituted. The ingredients which give the stew its characteristic flavor may vary depending on what is available locally to the cook. Possible ingredients include various combinations of pineapple, tomato, ngo gai, fried garlic, papaya, lotus root, Thai basil (Khmer: ជីក្រហម) and Thai chili.
Hot and sour curry (Thai: แกงส้ม, RTGS: Kaeng Som) is one of the Thai varieties of curry. Kaeng in Thai means a type of soup. Som in Thai means sour (this meaning is from the south of Thailand). The main ingredients of this dish are ripe tamarind and curry paste. In Thailand this curry is of 2 types, from the south of Thailand and from Central Thailand. The main ingredients of this dish are traditionally fish, shrimp, or an omelet. The other ingredients for cooking this dish are curry paste, ripe tamarind, palm sugar, fish sauce, radish, canton, or other vegetables. The curry paste is traditionally made from a chili powder, garlic, shallot, shrimp paste, and salt. They are pounded in the mortar and pestle, and mixed together. This soup has a lot of good properties for people because this soup has a lot of healthy ingredients. For instance ripe tamarind has vitamin C, vitamin B, vitamin A, Calcium, and etc. Traditionally fish (in Thailand we usually a snakehead fish used) has protein. So this menu has many nutrients to maintain good health. This dish has only a few calories because this dish doesn’t have any kind of ingredients that has a lot of carbohydrate or fat. Hot and sour curry (Kaeng Som) is typically eaten with rice, vegetables, or omelet with Acacia Pennata. However, some people eat this dish as a soup. This menu is found in many restaurants in Thailand.