"Donkey rolls" are long rolls rolled with yellow rice stuffing, because the rolls are covered with soybean noodles, and the rolls are rolled on the soybean noodles when eaten, which looks like a donkey rolling, hence the name. "
Donkey roll" originated in Manchuria. It originated in Chengde, and because the children of the Eight Banners of the Qing Dynasty loved to eat sticky food, "donkey rolls" soon spread to Beijing and became a kind of Beijing's flavorful snacks. It is popular in Beijing. Since ancient times, the Chengde area is rich in a kind of millet, according to "Jehol Zhi-Products" records: "millet, the natives called yellow rice". This millet, sticky, Chengde called yellow rice, can be smothered dry rice, or crushed into powder used to make sticky bean buns, rice cakes and "donkey rolls". Happy to eat sticky food was originally a Manchu tradition, because the Manchu hunting life, often early and late, eat sticky food to withstand hunger.