How Long to Cook Beef & Broccoli Stir-Fry (Flank Steak, Skillet) in the skillet
Specification: 1 lb flank steak sliced ¼-inch across the grain, marinated 20 min in soy + cornstarch; broccoli florets blanched 90 seconds; stir-fried in batches in a ripping-hot stainless or carbon-steel skillet
3-Step Execution Protocol
Preheat skillet to Ripping-hot stainless (500°F+ surface, 2 tbsp neutral oil at first smoke). Prepare beef & broccoli stir-fry (flank steak, skillet) (1 lb flank steak sliced ¼-inch across the grain, marinated 20 min in soy + cornstarch; broccoli florets blanched 90 seconds; stir-fried in batches in a ripping-hot stainless or carbon-steel skillet).
Cook for 8–10 mins total (2 min beef sear per batch × 2 batches + 3 min sauce combine). Do not flip; allow surface to develop undisturbed.
Beef strips have visible browned edges and just-cooked pink centres; broccoli is bright green and still snaps when bitten; the sauce clings and coats the back of a spoon. Confirm internal temperature reaches 145°F (63°C) at the beef strips — USDA safe minimum for whole beef. Rest for 0 minutes before serving.
USDA FSIS 145°F safe minimum for whole beef cuts; two-batch stir-fry technique per Grace Young (Stir-Frying to the Sky's Edge) and J. Kenji López-Alt (The Wok, 2022) — home stovetop skillet substitute for a wok is documented practice with the batch adjustment.