Who knows the origin of "steamed dumplings"?

There are many explanations about the origin of the word "steamed dumplings". One theory is that steamed dumplings in Hohhot in the early years were sold in teahouses. Diners are eating hot steamed dumplings while drinking strong tea or various lobular teas, so steamed dumplings are also called "selling", which means "selling behind your back"; It is also said that steamed dumplings are also called "slightly beautiful" because their edges are slightly wrinkled like flowers, which means "burning while burning". Nowadays, steamed dumplings have become a delicious staple food, so it is usually called "steamed dumplings".

When did steamed dumplings originate? It's hard to make it clear. Historically, when Hohhot was still a "naturalized city", steamed dumplings were already famous as the capital. At that time, restaurants in Beijing, Tianjin and other places used signs such as "Guihuacheng Steamed Dumplings" and "Authentic Guihuacheng Steamed Dumplings" to attract customers.