2. Put the meat in a bowl, add a little salt, a little white wine, add a tablespoon of starch, beat an egg white and mix well, and marinate for 15 minutes.

3. Put oil in the pot. When the oil is 60% hot, put the meat in a pot, fry it on medium and small fire (the time should be controlled so that the meat will not be tender), and remove it and drain it.

4. Chop onion and ginger, slice garlic, take a bowl, and put 1 teaspoon vinegar, 1 teaspoon oyster sauce, 3 teaspoons tomato sauce, 4 teaspoons sugar and 1 teaspoon water into the bowl and mix well.

5. Leave a little oil in the pot. After the oil is hot, put the onion, ginger and garlic into the pot and saute until fragrant. Then add the prepared sweet and sour juice, stew until bubbling, add the fried meat pieces and stir-fry until the meat pieces are covered with sweet and sour juice. Then turn off the fire and sprinkle with a little cooked sesame seeds.