Steps:
1. Cut the beef into thin
small pieces
2. Mix it with baking soda
and let it stay for 15 minutes
3. Wash the baking soda
off completely
4. Mix the beef with starch,
oyster sauce, soy sauce, and sugar and let it stay for 20 minutes
5. Heat the oil in a pan
6. When the oil is very
hot put the beef in it
7. Quickly stir it for 5
minutes and finally add scallion
8. Ready to serve