Preparation materials: sirloin 1 000g, tomato sauce 1 small dish, appropriate amount of potato pieces, onion 1 piece, 2 tomatoes, 2 shallots, ginger 1 small piece, cooking wine 1 small spoon, soy sauce.
1, wash the beef and cut it into 3cm cubes against the grain.
2, beef cold water pot, add cooking wine, ginger slices and boil for 2 minutes, then turn off the fire.
3. Remove the drowned beef and rinse it with hot water.
4. Cut tomatoes and onions into pieces for later use.
5. Pour an appropriate amount of cooking oil into the pot. After the oil is hot, pour in beef, soy sauce and soy sauce and stir well.
6. Then pour in tomatoes, onions, ketchup and chopped black pepper and stir well.
7. Pour a whole pot of water, shallots and ginger, boil over high fire for 20 minutes, and simmer over low heat for more than 2 hours.
8. Pour in the potato pieces and continue to stew until the potatoes are cooked. You can poke them with chopsticks.
9. Sprinkle salt and chopped green onion before serving.