The potatoes are very soft after being stewed, and the beef is tender. The combination of the two tastes very good. The method of stewing rotten and tender beef is as follows: Preparation materials: 300 grams of beef cubes, appropriate amount of chopped green onion, appropriate amount of potato cubes, appropriate amount of water, aged

3 grams of soy sauce, 3 grams of salt, 5 grams of light soy sauce, 5 grams of cooking wine, and 5 ml of cooking oil.

1. Pour 5ml of oil into the pot and sauté the chopped green onion until fragrant.

2. Pour in 300g beef cubes.

3. Stir-fry over high heat until it changes color.

4. Add 3g of dark soy sauce, 5g of light soy sauce, 5g of cooking wine, and 3g of salt, and stir-fry again.

5. Pour in appropriate amount of potato cubes and stir-fry evenly.

6. Pour in water until it covers the beef, and simmer over medium heat for 40 minutes.

7. After 40 minutes, it is ready to eat.