Biángbiáng noodles (Chinese pinyin: Biángbiáng miàn, biang is a compound word, so it can't be written in many ways, so it is often written as Biángbiáng noodles, biángbiang noodles or surface, ice and ice noodles instead), which is the traditional flavor noodles in Guanzhong, Shaanxi. It is named after the sound of biang and biang in the production process, especially the flour ground from Guanzhong wheat, which is generally drawn by hand. It is refined from first-class flour, mixed with soy sauce, vinegar, monosodium glutamate, pepper and other condiments to make noodle soup, fished in noodles and sprinkled with hot vegetable oil.