Baked sweet potato skin is a snack in Sichuan. Bake the skin slightly wrinkled in the upper pot, brush it with sauce, and then wrap it with pickles, radish, leek and chopped green onion. String them together and the taste is very unique.

Tiaopi is a kind of wide vermicelli made of sweet potato starch, which is a common dish in Sichuan hot pot. Making wide vermicelli with sweet potato starch as raw material. In Sichuan dialect, Polygonum cuspidatum means "Polygonum cuspidatum", and wide vermicelli is called "skin" because it is very wide. Over time, the wide vermicelli made of sweet potato is called "Polygonum cuspidatum", which is similar to the name of cold rice noodles. In some places, it is very suitable for making soup or salad.

Brief introduction of other things about bark.

Tiaopi appeared in the hot pot restaurant relatively late. Before the sweet potato skin, the most popular vermicelli is a kind of sweet potato powder narrower than the sweet potato skin, and the method is basically the same as that of the sweet potato skin. Because it is often used to cook hot pot, Sichuanese directly call it "hot pot powder".