It's not hard to find. You can usually buy cooked food in the supermarket. In fact, the cakes used to make steamed buns in Lamian Noodles are actually pancakes that many people eat. It's just that most merchants like to add onions or eggs when cooking, and then brush them with sauce to find a bigger supermarket. You can often see such cakes sold in the cooked food area. Tell the salesperson not to add anything else.
Or you can directly search for paomo on the shopping platform. Many businesses sell them. Please pay attention to the physical map. Some of them are fluffy and soft.