When it comes to Concubine Yang, no one knows about her. As soon as she entered the palace, she was favored by three thousand emperors of Emperor Xuanzong of the Tang Dynasty. There is a legend among the people that "when a concubine rides on the red dust, she laughs, and no one knows that it is a lychee." Concubine Yang, whose real name was Yang Yuhuan (AD 719-756), was a court musician, singer and dancer in the Tang Dynasty. Her musical talent was rarely seen among concubines in the past dynasties. He was originally from Yongle, Puzhou (now Yongji, Shanxi). He was born in Shu County (now Chengdu, Sichuan) on June 1, 719, the seventh year of Kaiyuan. Legend has it that Yuhuan grew up in Chengdu, Sichuan. She has loved local Sichuan folk snacks since she was a child, especially hot and sour noodles. Since ancient times, beauties have loved eating hot and sour noodles. They must eat hot and sour noodles every time they go out on the street. But things are unpredictable. When Yuhuan was 10 years old, her father suddenly passed away. She had no choice but to follow her mother to the home of her third uncle Yang Xuanxuan, who was an official in Luoyang. Later, because his third uncle Yang Xuanxuan was transferred and moved to Yongle (Yongji, Shanxi) to serve as an official, he never tasted his favorite hot and sour noodles again until he entered the palace and became a concubine. It was not until later that Concubine Yang was ill, and she couldn't afford it. The palace doctors were also helpless. No one could find out the cause. Everything was normal, just like ordinary people, but she just didn't think about food and tea, and she couldn't do anything. He couldn't eat anything, and he couldn't drink rice for half a month. He was so anxious that Emperor Xuanzong of the Tang Dynasty ordered to recruit famous doctors from all over the world, but it was all to no avail. "Laugh, no one knows they are lychees." She didn't eat lychees. The great eunuch Gao Lishi went to great lengths to please Tang Xuanzong and Yang Guifei. He wanted to cook all the delicacies in the world for Yang Guifei to eat - and took all the delicacies from the mountains and seas. Went there, but Concubine Yang didn't even look at it. Suddenly one day, he had an idea and thought of the concubine who grew up in Sichuan. He wanted to see if there were any snacks in his childhood hometown that the concubine wanted to eat. Of course, hot and sour noodles were very famous in Sichuan at that time, so Gao Lishi didn't waste much effort. They found the hot and sour noodles. When they brought a bowl of authentic Chongqing hot and sour noodles outside the imperial concubine's palace, the imperial concubine suddenly sat up. When she saw the hot and sour noodles, she couldn't help but burst into tears and her saliva overflowed. She took it Eat like crazy for a while, until the bottom of the bowl turns to the sky without dripping. The transformation of Yang Guifei's body shocked everyone present. Emperor Xuanzong of the Tang Dynasty even said without hesitation that "this noodle is the best noodle in the world", and later officially awarded the hot and sour noodle as the best noodle in the world.