1. Wash the onion, ginger and tomato respectively, and then cut the onion, ginger and tomato into sections for later use.

2. Boil water in a pot, add pork bones, take them out after boiling, rinse them off, put them in a casserole, add water, star anise and cinnamon, cover the pot, and simmer for about 1 hour.

3. Remove the residue such as star anise and cinnamon from the pot, add a proper amount of Jiang Mo to remove fishy smell, then add a proper amount of refined salt, monosodium glutamate and cooking wine to enhance the taste, add onion and tomato pieces, cover them again for about 15 minutes, turn off the fire, skim off the floating foam on them, and add pepper.

4. When eating, pour it directly into the pot, add the ingredients you want to eat, and the tomato pot is finished.