Noodles are the most famous in Jiaxian, Henan, Hancheng, Shaanxi and Qingyang, Gansu. Jia county noodle is a unique snack with exquisite ingredients, which has a history of thousands of years, and is called jia county for short. At first, mutton soup boiled with buckwheat noodles and cooked mutton, chopped green onion, fennel, star anise, pepper and pepper was fragrant but not greasy and delicious. In the late Qing Dynasty, buckwheat flour was replaced by wheat flour, which was more nutritious. According to the book "China Flavor Diet", Lehe in Jiaxian County "strengthens the spleen and regulates the stomach, which is the treasure of health preservation".