1. The main ingredients are ready, soak the soybeans 3-5 hours in advance
2. Remove the seeds and wash the bitter gourd, cut into thick slices, slice the ginger, put the pork bones in the pot, put the ginger slices, and blanch the blood
3. Put the blanched pork bones in a casserole, put ginger slices, pour in enough water, put in the soaked soybeans and bitter gourd, boil for 1.5 hours on a low fire, and it is best not to uncover during this time.
4. After boiling, add salt and chicken powder