1. Prepare materials
2. Put butter and corn oil in the pan
3. Oxtail bone with flour
4. Fry for 2 minutes
5. Turn over and add garlic and savory leaves until fragrant
6. Pour the cooking wine along the side of the pot
7. Add water to a boil and skim off the foam
8. Beat two tomatoes into juice, add to the soup and cook for 1 hour
9. Prepare garnish, potatoes, carrots, onions, cabbage, tomatoes, and tomatoes
10. Saute the scallions in the frying pan
11. Add potatoes, carrots, cabbage and stir well
12. Add them to the stock pot
13. Cook for another half an hour
14. Add tomatoes and salt and cook for 15 minutes
15. Sprinkle black pepper before serving
