Preparation materials: tube bone: 4 pieces, tomato: 2, potato: 1, cooking wine: 2 spoons, salt: moderate.

1, tube bone with water to clean, and then into the pot, add cooking wine blanching, and then fished out and drained water standby.

2, another pot, pour enough water, put the bones, high heat and cook for 5 minutes, then turn to medium heat and cook for 40 minutes.

3. Wash the tomatoes with water, then peel and cut them into pieces, clean the potatoes, peel and cut them into pieces.

4. Put the cut tomatoes and potatoes into the bone broth, then boil over high heat and cook over medium heat for 30 minutes.

5, before leaving the pot, add the right amount of salt to taste.