Potato wiping: one of the traditional meals in Yan 'an, also known as "potato does not pull" and "potato kule". Potato is potato. When this dish is processed, the potatoes are rubbed into inch-long slices with a squeegee, mixed with pepper, shredded onion, ginger powder, salt powder, etc., mixed with flour and steamed in a cage. When eating, put it into a large bowl and add garlic paste, spicy noodles, sauce, vinegar, scallion oil or sesame oil. If you use a wok to fry quickly, it tastes better. Potato wipe is a natural green food, which can be eaten all year round. Potato is actually a potato, and wiping is a tool to wipe shredded potatoes.