Preparation materials: 2 tomatoes, 500g ribs and yam 1.

1. Wash the ribs first and put them in boiling water for blood washing.

2. Then start to boil the ribs in the pot and drain the floating water.

3. Then add some ginger slices.

4. Peel and wash the yam and cut it into small pieces.

4. Wash the tomatoes and cut them into pieces.

5. Put the cut tomatoes in the ribs and stew together 1 hour.

6. Then put the yam into the soup and continue to simmer for 40 minutes.

7. After the time is up, add a proper amount of seasoning salt to the soup.

8. finally put it in a bowl.