I have not eaten, just listen to the name, I think it is the Guangdong generation of specialties, because of the poria cream, online, but not right, it is a Beijing specialty. Poria cake, also known as Poria sandwich cake, is a Beijing produced a tonic traditional Han Chinese snacks. Because the skin is as thin as paper, and the color of snow white, very much like the Chinese medicine in the cloud Poria slice, so it is called "Poria cake.