1. All the ingredients are ready, soak the kelp in advance
2. Boil the big bones in water to remove the blood foam inside
3. Take out the blanched bones and wash them
4. Cut the kelp into strips and tie it up. You can also buy it directly. I use dried kelp and soak it myself.
5. Put the bones and kelp knots into the casserole
6. Add seasoning
7. Add the right amount of water and finish the bones
8. Bring to a boil on high fire, then boil on low fire for an hour
9. Kelp bone soup is ready
