Chili oil jars, although it may also be made from scratch at home. It is usually available by request at Chinese restaurants. Chili oil has various names in China. It is called (chili pepper splashed with oil) in Shaanxi province and 辣油("spicy oil") or 紅油("red oil" ) in Sichuan province. Among those names the most popular one is 辣椒油("chili pepper oil"). In China, chili oil is prepared basically by pouring hot vegetable oil slowly on chili pepper powder or chopped chili pepper. Many other ingredients can be added alongside to enrich flavor such as Chinese black vinegar, minced garlic, dried ginger skin,
Hot and sour soup 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 () and Thai chili. "Tom yum" is a Thai soup flavored with lemon grass, lime, kaffir lime leaves, galangal, fish sauce and chilis. Sour curry (Thai: แกงส้ม, RTGS: Kaeng som) is a soup-like spicy and sour Thai curry. "Sinigang" is a Filipino soup or stew characterized by its sour and savoury taste most often associated with tamarind. "Canh chua" (literally "sour soup"), a sour soup indigenous to the Mekong River region of southern Vietnam,