Who invented the "doughnut" and how old is it?

Doughnuts were invented a long time ago, the exact period is not verifiable.

Doughnut, an ancient Han Chinese noodle dish, is a long, hollow, deep-fried food with a crunchy, tough texture, one of China's traditional morning snacks. Many people mistakenly believe that, in the Song Dynasty, Qin Hui persecuted Yue Fei, folk by frying a similar doughnut noodle food (fried hinoki) to express anger, is seen as the origin of the doughnut, in fact, the doughnut is far earlier than the Song Dynasty. The specific period can not be examined.

As early as the North and South Dynasties period, the Northern Wei agronomist Jia Siqing. In his "Qimin Yaojutsu" recorded the production of fried food. During the Tang Dynasty, the poet Liu Yuxi described the shape of the doughnut and the process of making it: "The delicate hand rubbed the jade to find a number of, the blue oil frying out of the tender yellow deep. The night of spring has no weight, the pressure plaque beautiful people wrapped around the arm of gold".

Dried doughnuts called different places, "Tianjin, said the doughnuts for the fruit; some areas of Anhui Province, said the oil fruit; Northeast, said the big fruit; Fujian, Fujian, Fujian and other places called deep-fried ghosts; Chaoshan region and other places called deep-fried fruit; Zhejiang region, there is a Tianluo tendon of the claim (Tianluo that is, loofah, the old loofah after drying shells will be left behind the loofah tendon, the shape of its doughnuts and very similar, and then said that the doughnuts as a). (Tian Luo tendons).