2. Remove the onion, ginger and carrot from the soup in the pot, take out the pigskin and chop it up, then put it in the pot. After boiling, skim off the oil slick, pour it on the mutton in the plate, cool it and put it in the refrigerator to make mutton cakes.
3. Take out the frozen mutton cake, change the knife and cut it into pieces with a length of 3-4 cm and a thickness of 6-7 cm, put it on a plate, and bring a small dish of shredded onion and garlic and a small dish of hot sauce when serving.