1. Dice beef, add hot water, microwave on high heat for 2 and a half minutes, drain and set aside
2. Diced all vegetables
3. Add ginger, starch, salt and lemon juice to the beef, mix well
4. Put in the middle of the diced vegetables, add butter, tomato sauce, and appropriate amount of water
5. Mix starch with cold water to make water starch for later use
6. Step 4 Cover and boil on high heat for 10 minutes, then turn to medium heat for 20 minutes, stop working and take it out
7. Add the water starch made just now, put it back in the microwave, microwave on high heat for 5 minutes and it will thicken well.
Tips:This is for 2 people, it is recommended to use transparent utensils for cooking, which can visually check the dense change process of the soup
