There are many legends about the origin of mutton soup in Pingquan, Hebei Province. The most popular one is that Emperor Kangxi set up a hunting camp in Weichanggou (now Dangba, Pingquan, Hebei Province) and chased a sika deer to Bagou (now Pingquan Town, Pingquan County). The deer didn't catch up when they entered the Liulin, but Emperor Kangxi was hungry. At this moment, there was a fragrance not far away, which was very attractive. Kangxi searched for incense and found a small shop. An old Muslim in the shop was busy cooking a pile of greasy things in an iron pot, and the fragrance just floated out of the pot. Kangxi also asked.

Price, call: "Come to dinner!" "The old man who opened the shop didn't dare to neglect. He quickly filled a bowl of mutton chop suey soup and took two baked wheat cakes. Kangxi was radiant and full of energy after eating, only to remember that he didn't ask what he was eating. The old man told him: "this is called mutton offal soup, which is made of mutton offal." "Kangxi thought it was very tasty, so he blurted out a poem:" xifengkou is far away, and the ancient road of Saibei is long. Wild deer enter the willow forest, bagou mutton offal soup. "Since then, Bagou mutton soup has gained a great reputation, and everyone outside the Commissioner knows it. Foreign diners are full of praise: "No wonder Pingquan mutton soup is so good, it was originally sealed by Kangxi! "