1. Rinse the pork bones with water.
2. After the water in the pot is boiled, pour the pig bone nao water, there will be some dirty bloody foam.
3. Remove the water to rinse off the foam.
4. Put pork bones and ginger into a casserole, add boiling water all at once and cook on high heat.
5. The soil yam given to me.
6. Rinse, peel, wash and cut into pieces (put on gloves once)
7. Add yam chunks when the pork bones are almost cooked.
8. Cook until the meat is cooked and the yam powder soup is thick, add some salt to taste.
9. The taste of soil yam is very good.
