Sweet potato powder. According to the information about the vermicelli in the northeast cauldron, the vermicelli in the northeast cauldron is called sweet potato powder. Because sweet potato flour is more delicious than potato flour, sweet potato flour is made of sweet potatoes. The vermicelli made of ground flour is quite delicious to stew sauerkraut with, and it is also very delicious to stew pork with sweet potato vermicelli. The famous dish in Northeast China is pork stewed vermicelli, which means that vermicelli stewed with sweet potato powder is a very delicious home-cooked dish.