1, cut the beef into pieces, put the onion, ginger slices and cooking wine in cold water into the pot, boil it, take it out and dry it for later use.

2. Pour an appropriate amount of oil into the pot, add onion, ginger slices, star anise and fragrant leaves, stir-fry the beef for a while, add 1 tablespoon cooking wine, 1 tablespoon soy sauce, 1 tablespoon oyster sauce, stir-fry and color, and then pour in tomatoes and stir-fry it.

3. Add appropriate amount of water, simmer for 40 minutes after boiling, add potatoes, onions, rock sugar and appropriate amount of salt to taste, continue to cook until the potatoes are soft and rotten, and finally sprinkle with chopped green onion.