First cut the beef steak into thin slices or strips, against the grain. Marinade with soy sauce, sugar, white pepper, sesame oil and baking soda. Set aside for 15-20 minutes.
Prepare the vegetables by cut the onion and bell pepper in small cubes. Cut re chilli into thin slices.
In a small bowl, mix all the sauce ingredients and set it aside.
Break one egg into the marinated beef mix it well. Then dredge the beef slices in the corn starch. Make sure each beef slices are separated and coated well. Toss the excess flour out before frying.
To deep fry the beef, heat the oil into high-heat about 350° F. Fry the coated beef slices for 2-3 minutes, until the coating is crispy. Remove from oil and transfer to paper towel or cooling rack.
In a large wok or pan, add 1 tablespoon oil, heat the pan to medium heat, add chopped garlic and stir for few seconds. Follow with the onion and bell pepper and stir fry for 1 minutes.
Pour the sauce mixture in and stir well until the sauce starts to get thicken. Place the fried beef and chilli slices in. Toss well to combine the beef and sauce evenly.
Transfer to serving plate and serve immediately with plain rice, egg fried rice or stir fry noodles.