“The mutton steamed bun was invented as a tribute to the emperor’s diet in the past. It was called “yang gen” in ancient times. A poet from the Song Dynasty wrote a poem: “Long cuisine has bear wax, but Qin cooks only yang gen.”

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The history of yokan can be traced back to the 11th century BC. At that time, it was also listed as a ceremonial dish for kings and princes. The mutton steamed buns in Lanzhou and Xi'an are very different. Cut the cooked mutton into large pieces, add vermicelli, garlic sprouts, coriander, and pour the mutton soup, and it is ready to eat.

There are also steamed buns, and Xi'an is dead noodles (unfermented noodles). ) cake, and Lanzhou's is a local yeast cake, which maintains the original flavor of flour and is delicious without any condiments.