Sanjue soup is a popular special dish in Langzhong in recent years. It organically combines the three delicious foods in Langzhong: Zhang Fei beef, Baoning vinegar and white sugar steamed buns. The practice of Sanjue Soup is: first, cut the beef into cubes, cut the steamed bread into cubes, and fry it in oil to make it golden and hard. Mix with broth, add vinegar, and simmer with low fire to make three fragrant and thick soups. These three unique soups are both soup and porridge. Their color is Huang Liang, which is delicious and refreshing, while beef tastes soft and delicious, steamed bread tastes very refreshing, and there is a trace of vinegar in it. It is understood that St. Tang Jue can be eaten before, during or after meals, which has the functions of appetizing, strengthening the spleen and stimulating appetite. Good taste, comfortable to eat, refreshing, clearing away heart fire and nourishing the body. Now, many foreigners come to Langzhong. They want to eat the names of the three wonders of Yuen Long. They ate bowl after bowl, which was really hearty and comfortable.