Bakpao

Baozi , or simply bao, is a type of yeast-leavened filled bun in various Chinese cuisines. There are many variations in fillings (meat or vegetarian) and preparations, though the buns are most often steamed. They are a variation of mantou from Northern China. Baozi are popular throughout China and have even made their way into the cuisines of many other countries through the Chinese diaspora. Written records from the Song dynasty show the term baozi in use for filled buns. Prior to the Northern Song dynasty (960–1279), the word mantou was used for both filled and unfilled buns. According to legend, the filled baozi is a variation of manta invented by military strategist Zhuge Liang. Over time mantou came to indicate only unfilled buns in Mandarin and some varieties of Chinese, although the Wu Chinese languages continue to use mantou to refer to both filled and unfilled buns.[citation needed]

Source: Wikipedia