Nam ngiao

Nam ngiao m ŋía̯w]) or nam ngio (Thai: น้ำงิ้ว, pronounced [ná(ː)m ŋíw]) is a noodle soup or curry of the cuisine of the Tai Yai people who live in the northeast of Burma, the southwest of Yunnan province, China, and in northern Thailand, mainly in Mae Hong Son Province. The dish has become famous in the northern Thai cuisine. Nam ngiao has a characteristic spicy and tangy flavor. This soup is made with noodles; the most commonly used type is khanom chin, fermented rice vermicelli, although kuaitiao or other noodles may be used. Beef or pork is another main ingredient, as well as diced curdled (chicken or pork) blood cake. Chopped tomatoes give the dish a certain sour flavor and crispy roasted or fried dry chilies and garlic are added for spiciness. Another important ingredient that gives the dish its characteristic flavor is thua nao, a type of fermented soy bean that is used extensively in northern Thai cuisine and for which shrimp paste is sometimes used as a substitute. Nam ngiao is often served along with pork rinds. The name of the dish originates either from the Thai name of the Bombax ceiba (Thai: งิ้ว; ngio) of which the dried flower cores are an essential ingredient in the soup, or from ngiao, a derogatory term used in Northern Thailand for people of Shan descent.

Source: Wikipedia