01 -
Pat flank steak dry and cut against the grain into thin slices
02 -
Add baking soda, cornstarch, Shaoxing wine, soy sauce and oil to sliced steak. Mix well and let rest for 15 minutes
03 -
Combine dark soy sauce, oyster sauce, sugar, pepper, cold water, and toasted sesame oil in a small bowl
04 -
Heat 1 tablespoon oil in wok or large skillet over medium-high heat. Add steak in single layer without overcrowding. Cook undisturbed for 2-3 minutes, flip and cook another 2-3 minutes
05 -
Take seared steak from wok and set aside covered
06 -
Add remaining oil to same wok. Add onion, white parts of green onion, and garlic. Sauté for 2 minutes
07 -
Pour stir-fry sauce around edges of wok so it sizzles, then stir to combine
08 -
Return seared steak with any accumulated juices to wok. Add green parts of onion. Toss on medium-high heat until steak is well coated with sauce