The main producing areas of potatoes are southwest mountainous areas, northwest, Inner Mongolia and northeast China. My home is in the northwest, and the price of potatoes is not high. Every year, my favorite things are: 1. coarse vermicelli (vegetable type), pork, Chinese cabbage and vermicelli stewed together, which are delicious and the price is moderate. vermicelli can last for a long time if you buy 20 yuan (we eat for 3-4 people). 2. There is potato powder (starch processing type), which is to press potatoes into powder by machine, which is somewhat similar to beef noodle. The price of potatoes in the north is lower, but the price in the south is relatively higher.