Jiaozi are a kind of Chinese dumpling, commonly eaten in China and other parts of East Asia. 

​

Jiaozi typically consist of a ground meat and/or vegetable filling wrapped into a thinly rolled piece of dough, which is then sealed by pressing the edges together. Finished jiaozi can be boiled (shuǐ jiǎo), steamed (zhēng jiǎo) or pan-fried (jiān jiǎo)

In China, there are several different folk stories explaining the origin of jiaozi and its name.

Traditionally, jiaozi were thought to be invented during the era of the Eastern Han (AD 25 - 220)[1][2] by Zhang Zhongjing [3] who was a great practitioner of traditional Chinese medicine. Jiaozi were originally referred to as "tender ears" (Chinese: 嬌耳; pinyin: jiao'er) because they were used to treat frostbitten ears. Zhang Zhongjing was on his way home during wintertime, when he found many common people had frostbitten ears, because they did not have warm clothes and sufficient food. He treated these poor people by stewing lamb, black pepper, and some warming medicines in a pot, chopped them, and used them to fill small dough wrappers. He boiled these dumplings and gave them with the broth to his patients, until the coming of the Chinese New Year. In order to celebrate the New Year as well as recovering from frostbitten ears, people imitated Zhang's recipe to make Jiao'er.