1. Slice pork lean. Put soy sauce, 1 teaspoon sugar and oyster sauce into pork lean, mix well and marinate 30 mins, then put in cornstarch and oil and mix well.
2. Shred ginger and take kale leaf.
3. Heat the oil, stir fry ginger, then put in pork lean and stir fry.
4. Put in kale, shao xing wine and salt, stir fry until mix well.