1. Wash the mustard greens and pick the sections.
2. Peel and cut sweet potatoes into small pieces
3. Peel and slice ginger.
4. Heat the oil pan and burst the ginger.
5. Put in 3 bowls of water and boil. (Those who like soup can add more water.)
6. Add the sweet potatoes and cook until the chopsticks can penetrate.
7. Add mustard greens and cook until soft.
8. Season with salt and chicken powder.
9. One pot of soup, convenient and delicious.
