2. Cut the mutton in the mountainous area of northern Shaanxi into 5 cm square pieces, then pour cold water into the pot and put the mutton in (be sure to put it in a pot with cold water);

3. When the pot is about to boil, use a spoon to filter out all the blood foam in the pot (this step is crucial); You can also fish out the meat, change the water, and put the meat in to cook;

4. Put the onion, dried pepper, ginger, pepper and pepper into the pot; Stew the soup on low heat for 2 hours, turn it over, cook it, and add coriander and shredded onion.