Comprehensive recipe of tube bone soup:

Ingredients: 100 grams of kelp; 1 piece of tofu; 30 grams of carrots; 500 grams of tube bone; 5 grams of ginger; 5 grams of coriander; green onion 5 grams; 3 grams of Sichuan peppercorns; 3 grams of star anise.

Accessories: 1 spoon of sugar; 0.5 spoon of cooking wine; 2 spoons of salt; 0.2 spoon of MSG.

1. Chop fresh pork ribs into two pieces, soak in water for half an hour and wash.

2. Boil water in a pot, blanch the drum bones in water to remove impurities and grease, then wash them several times and drain the water.

3. Put the ginger slices, star anise, and peppercorns into the seasoning box.

4. Add an appropriate amount of water to the pot, add the drumsticks and seasoning box, add sugar and cooking wine, and cook over high heat until the drumsticks are cooked but not soft.

5. Put an appropriate amount of the cooked tube bones and soup into the pot and add an appropriate amount of water.

6. Soak the kelp, peel and wash the carrots, and set aside the tofu.

7. Put the kelp knots into the pot and simmer over high heat for ten minutes. Cut the tofu into pieces and blanch them, then put them into the pot and stew over medium heat for ten minutes.

8. Add carrots and simmer over medium heat for five minutes.

9. When the ingredients are simmered, add salt and MSG to season evenly. Finally, sprinkle with chopped green onion and coriander for freshness, then serve.