Chili oil be used. Other spices may be included such as Sichuan pepper, garlic, or paprika. Commercial preparations may include other kinds of oil, water, dried garlic, soy sauce, and sugar. Recipes targeted to Western cooks also suggest other popular oils such as rapeseed, grapeseed or peanut, and any dried or fresh chili peppers. The solids typically settle to the bottom of the container in which it is stored. When using chili oil, the cook or diner may choose how much of the solids to use; sometimes only the oil is used, without any solids. Chili oil is commercially available in glass
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,