Slice steak against the grain and marinate with baking soda, white pepper, soy sauce, cornstarch and egg white for 30 minutes in the fridge.
Cut pepper and onions into 2” pieces. Chop 2 cloves of garlic and set aside.
Mix together soy sauce, hoisin sauce, oyster sauce, sugar, sriracha, and ketchup to form your sauce.
Dust marinated beef in cornstarch then fry at 350F in neutral oil for 3-4 minutes or until golden brown.
Sauté vegetables over high heat for 2 minutes in 2 tbsp neutral oil over high heat then add beef and sauce.
Mix until combined then add vinegar, mix, then add cornstarch slurry. Stir for a minute to thicken. Serve with rice & enjoy!