1. Wash lamb bones, cook ginger, garlic, star anise, and lamb bones in cold water. Bring to a high heat. Fill the pan with a little water and bring to a boil on high heat while skimming the froth. This will go back and forth three times. The time is about 40 minutes.
2. After these three rounds, the soup becomes milky white. At this time, change to a casserole and add salt. Add the salt according to your taste, and continue to boil.
3. Chopped green onion
4. Put it in after turning off the heat
Tips:The mutton soup must be on high fire, otherwise the soup will not be milky white
