1. Prepare materials
2. Cut beef into dice, peel and cut yam and carrot into cubes, and cut white radish into cubes
3. Beef is blanched in a pot under cold water
4. Fish out for spare
5. Put cold water in a casserole, put beef, green onion, ginger, star anise, pepper, jujube, medlar, add cooking wine
6. Turn the high heat to a boil, simmer for 15 minutes on low heat, pour in the yam, carrots and white radish and continue cooking
7. Add oyster sauce, light soy sauce, salt, and continue to cook until the beef is rotten
