Material preparation: 2000g beef bone, 300g kelp, 6 onions, 3 ginger, 20g edible salt, proper amount of purified water, pots and bowls, etc.

1. Put the bones directly into the cold water pot, add some cooking wine to remove the fishy smell, boil for about 5 minutes after the fire, and then turn off the fire. Only by slow cooking with cold water can the blood in the cow bones be squeezed out. Boil for a few minutes, then take out the beef bones and wash them again.

2. Come down and put the washed beef bones into the saucepan, then add cold water. This water must be added at one time, and only bone soup cooked in cold water will taste more delicious. Add onion and ginger slices, then add a little vinegar. Cover the pot and bring to a boil, then simmer for an hour. There is no need to add a lot of materials to the soup.

3. Come down and prepare some kelp. I bought dried kelp directly from the supermarket, and slightly shook off the sediment on the dried kelp. Then boil water in a pot, and steam the dried kelp directly on a steamer for about 20 minutes. This can not only retain the nutrients in kelp to the greatest extent, but also make kelp taste good.

4. After the kelp is steamed, take it out and wash it again. Then put the kelp in another cold water pot and cook for 15 minutes.

5. After the kelp is cooked, take it out and wash it again. Then cut all the kelp into thin strips and tie a knot for the kelp.

6. After beef bone stew 1 hour, add kelp knots, cover the pot and continue stewing for half an hour.

7. Finally, season with salt and stew for about 5 minutes. Generally, stew soup is added at the end of the pot, so that the beef bone soup is more delicious and the meat will not be stewed. Add Lycium barbarum, stir well, turn off the heat, and sprinkle chopped green onion before taking out.

8. This kelp bone soup is cooked, so the beef bone soup is delicious, original, nutritious and delicious.