Dunhuang Rangpi (Rangpi) is a famous local snack food made of flour. Some varieties are yellowish while others are white. With special seasonings, this dish tastes slightly spicy. This noodle-like dish is typically served cold.
Unlike Dunhuang yellow noodles, Rangpi is fairly easy to make. First boil some flour in water and stir until the starch and protein separate. Then remove the starch and boil it again. After all the water evaporates, cut the solidified starch into thin strips and add seasoning. While it may sound strange, it's not really. In fact, it is quite tasty.