you should be talking about fenyang powder.

Fenyang Spinning Powder is a kind of traditional cold salad food which is spread in Fenyang City. Its appearance is light yellow, crystal clear, soft and smooth, and it is cool and refreshing.

For a long time, it has been a kind of delicious food that Fenyang people are proud of, and it is also an indispensable delicacy for Fenyang people to have holidays or entertain guests. In the 1998 edition of Fenyang County Records, the food processed by agricultural and sideline products during the Qing Dynasty to the Republic of China included spinning powder, but there was no record of spinning powder food in the surrounding counties and cities of Fenyang.