2. Wash the beef and slice it vertically.

3. Put the beef in a small bowl, add appropriate amount of soy sauce, salt and starch, stir with chopsticks, and marinate for 10- 15 minutes (if you don't mind, stir and squeeze by hand, the taste will be better).

4, potatoes peeled, shredded, sliced, or sliced, not too thin, spare.

5. Dice the shallots for later use, put them in a medium hot pot, and add appropriate amount of cooking oil.

6. When the oil temperature is 6-80%, turn on medium heat and pour in beef and stir fry.

7. After the beef is ripe, pour in potatoes and add water, almost without potatoes.

8. Add the right amount of soy sauce and mix well.

9. Cover and cook over medium heat until the juice is almost dry.

10, take out potatoes and beef, add a little cooking oil to the pot, and pour in shallots and stir-fry until fragrant.

1 1. Pour in potatoes and beef and mix well.

12. Seasonings such as black pepper and spiced powder can be added appropriately.