During the period of King Zhao of Chu, there was a chef named Shi Jiu in the palace of the capital of Chu. His superb skills and exquisite cooking won the love of the king of Chu and foreign guests.

Shi Jiu lives by the He Man River in Yicheng, and only her mother in her sixties lives alone. One day, Jenny accidentally slipped into the river while washing clothes. Thanks to several duck farmers, she was saved. Shimu became ill after landing, but thanks to the careful care of the villagers, she got better. The villagers sent another message to the palace and told Zheng Shi.

Shi Jiu is a dutiful son. After learning the news, he hurriedly asked for leave and rushed home to visit his mother overnight. He visited the duck farmer who saved his mother and the people who took care of her. For fear that his mother would have another accident, Zheng Shi never dared to leave home again.

While taking care of his mother, Shi Jiu intends to do something for the villagers. He saw that many ducks were raised by villagers, but duck eggs and duck meat were worthless, so he used his skills: he used the skills of making swan eggs and bird eggs in the palace to process them into salted duck eggs (the predecessor of preserved eggs), and whoever ate them said yes. Take it to the market and sell it. This is very popular and can fetch a good price.

After Shizhen returned to her hometown, the cooking quality in the Chu palace was not as good as before, and the appetite of the king of Chu decreased. So the palace sent a search, found Shi Jiu, and asked him to return to the palace. In order to be filial and repay the villagers, Shi Jiu asked someone to help him quit his job in the palace, and also asked him to bring back some sauced ducks and eggs made by himself to the king of Chu. After the king of Chu tasted it, he praised Shi for being filial to his mother and grateful to the villagers. He ordered the salted duck and salted duck eggs to be named "tribute salted duck" and "tribute salted duck eggs", which were produced all year round and supplied to Chu Palace.

Zheng Shi led the villagers to make a fortune by producing tributes. This kind of tribute, the delicious and unique production technology of salted duck and salted duck eggs, has also spread to today.

Sauced duck is a delicious food, which is mainly made of duck and sauce. It is made by killing ducks, unhairing, rubbing salt and re-salting, finally igniting with straw, spreading chaff shells, and repeatedly smoking and baking ducks until the first burning smoke is golden yellow after dispersing.

The finished salted duck is deep red in color, crispy in meat, rich in sauce flavor and long in aftertaste. It has the functions of promoting blood circulation, invigorating spleen and stomach, and beauty beauty. It is a famous traditional flavor that is popular in the north and south of the country.