01 -
In a bowl, toss flank steak slices with 2 tablespoons soy sauce and 1 tablespoon cornstarch. Set aside for 10 minutes to marinate.
02 -
Bring a pot of water to a boil. Add broccoli florets and blanch for 2–3 minutes until just tender. Immediately transfer to ice water to halt cooking, then drain thoroughly.
03 -
Heat 2 tablespoons of vegetable oil in a large skillet or wok over medium-high heat until shimmering.
04 -
Add marinated steak to the skillet and stir-fry for 3–4 minutes until beef is browned and fully cooked. Remove beef from skillet and set aside.
05 -
In the same skillet, sauté minced garlic and ginger for 30 seconds until fragrant.
06 -
Add blanched broccoli to the skillet and stir-fry for 2 minutes.
07 -
Return beef to the skillet. Pour in beef broth, add the remaining 1 tablespoon soy sauce, oyster sauce if using, and sesame oil.
08 -
Mix 1 tablespoon cornstarch with 2 tablespoons water. Add to skillet and stir continuously until the sauce thickens, about 2–3 minutes.
09 -
Season with salt and black pepper to taste. Mix thoroughly to ensure even coating.
10 -
Remove from heat and serve hot, accompanied by steamed rice or noodles as preferred.