When was pea yellow invented?

Pea yellow is a folk snack, which was invented at that time and became famous in the Qing Dynasty!

Pea yellow was originally a folk snack of Hui nationality, generally made of jujube, commonly known as coarse pea yellow, placed on a unicycle covered with wet blue cloth and sold at temple fairs and other occasions. Later, it was introduced to the court and improved by the imperial dining hall of the Qing Dynasty. Commonly known as fine pea yolk, it is equivalent to court snacks such as kidney bean cake and wowotou.

It is said that one day Cixi was sitting in the meditation room in Beihai when she suddenly heard gongs and shouts coming from the street. She was puzzled and asked what she was doing. The eunuch on duty reported that she sold pea yellow and kidney flower rolls. Cixi was happy for a moment and sent a command to call this person into the park. When someone saw Galeries Lafayette, they quickly knelt down with kidney rolls and pea yellow in their hands. Please come to lafayette. Cixi tasted it and was full of praise. She left this man in the palace to make pea yellow and kidney bean rolls for her.