2. Wash the brisket with cold water and cut it into 3cm square.
3. Wash the potatoes and cut them into pieces for use. Slice the ginger.
4. Put the beef pieces into the soup pot and add enough cold water. The amount of water is subject to the complete immersion of the beef pieces. After the fire boils, continue to cook for 2 minutes. After the blood foam is completely separated, take out the beef pieces.
5. Put the beef into the pot, add star anise, fragrant leaves, light soy sauce, dark soy sauce, cooking wine, scallion and ginger slices, then pour the water into the pot, boil it and simmer for 60 minutes.
6. Finally, put the potato pieces and pepper into the pot, add the salt, mix well and continue to simmer for 20 minutes.