Liangfen were formerly also used. The starch is boiled with water and the resulting sheets are then cut into thick strips. "Liangfen" is generally served cold. The "liangfen" strips are tossed with seasonings including soy sauce, vinegar, sesame paste, crushed garlic, julienned carrot, and chili oil. In Lanzhou it is often served stir fried. In Sichuan, a spicy dish called Chuanbei Liangfen is particularly popular (see photo above). Similar foods include the Korean "muk" made with chestnut starch and Japanese konnyaku jelly . "Jidou liangfen", a similar dish from the Yunnan province of southwest China, is made from chick peas rather
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,