Add salt, black pepper powder, starch and light soy sauce in the beef within a small blow and mix evenly.
Just before cooking process, add egg white to marinated beef and stir in one direction until you get a paste.
Heat up cooking oil in wok and stir fry beef slices around 1 to 2 minutes or until the beef begins to change color.
Move the beef slices out and leave the oil in wok. Add ginger slices, 2/3 of scallion sections and chili pepper shred to cook until aroma.
Return the beef slices in wok, do a quick fry and stir in stir fry sauce. Turn off the fire and add green onion sections and the left scallion. Mix well.