1, salt beans. Salt beans are famous for their salty taste, and people in Pixian County of Xuzhou feel uncomfortable if they don't eat them for a day. The production method is also very simple. Boil the soybeans until they are soft and rotten, take them out while they are hot, put them in a cloth bag, wrap them in an unused cotton coat, and cover them in a warm place for five or six days. When you take them out, you will see silk that can grow.

2, black pickles. Black pickles are pickled spicy vegetable bumps that are placed on the earthen stove for one day and one night. They taste salty and fragrant, and a bite of porridge or noodles is delicious.

3, the child is crisp. During the Chu-Han period, Yu Ji Xiang Yu loved sweets. In order to win a beautiful smile, she looked everywhere. One day, she met an old man named Jin, who gave her something. This thing is crisp, sweet but not greasy. Yu Ji laughed after eating, full of praise. Later it was called "tribute sugar", which is today's "children's crisp".