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Dinner · Part 2 of 3: Instructions

Quick Savory Beef and Broccoli Stir-Fry Step-by-step instructions

A dark ceramic plate featuring glistening, sauce-coated flank steak and vibrant green broccoli florets.
Prep
Cook
Total
Serves
4
Includes 5 min resting

Before you start

Before starting, ensure all ingredients are prepped and within reach, as the cooking process moves very quickly once the wok is heated.

Slice the flank steak into thin, uniform strips across the grain to ensure even cooking. Cut the broccoli into bite-sized, consistent florets so they cook at the same rate.

Slice the onions thinly. Having the sauce measured and ready to pour is essential, as the high heat requires constant attention. Clear the workspace and have all necessary equipment, including a sturdy pair of tongs, ready for immediate use.

Ingredients at a glance (4)
  • 1 lb flank steak, thinly sliced
  • 1 lb broccoli florets
  • 1 medium onion, sliced
  • 1/2 cup savory brown sauce, store-bought or made ahead

Instructions

Searing the Beef

  1. Sear the beef
    Heat a smoking hot wok over high heat. Add the thinly sliced flank steak in a single layer. Sear until browned and cooked through to an internal temperature of 145°F (63°C). Remove the beef from the wok and let it rest for 5 minutes.
    Look for The beef should be deeply browned and sizzling intensely.
    Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
    Tip Ensure the wok is very hot before adding the beef to achieve a proper sear.

The beef should be deeply browned and sizzling. It is critical to remove it from the heat once it reaches the correct internal temperature to prevent overcooking while the vegetables are prepared. The kitchen should smell savory and aromatic at this stage.

Stir-frying Vegetables

  1. Stir-fry vegetables
    Add the broccoli florets and sliced onions to the same hot wok. Stir-fry rapidly over high heat until the vegetables are tender-crisp and bright green.
    Look for The broccoli should look vibrant green and the onions slightly softened.
    Tip Keep the vegetables moving constantly to prevent burning while maintaining the high heat.

The broccoli and onions should be bright, vibrant, and tender-crisp. Look for the edges of the onions to start becoming translucent and the broccoli to turn a vivid green color. Ensure the wok remains hot throughout this process to maintain the stir-fry effect.

Glazing and Combining

  1. Combine and glaze
    Return the seared beef to the wok with the vegetables. Pour in the savory brown sauce. Toss everything together quickly until the sauce bubbles, thickens slightly, and coats every piece of beef and broccoli in a glossy glaze.
    Look for The sauce should become thick and glossy, clinging to the ingredients.
    Tip Do not overcook the sauce or it may become too sticky.

The final stage results in a cohesive dish where all elements are uniformly coated in a glossy, thick sauce. The mixture should be aromatic and visually appealing, with the meat and vegetables perfectly integrated. Serve immediately while hot for the best texture and flavor.

Common mistakes

A common mistake is overcrowding the wok, which drops the temperature and causes the beef to steam rather than sear. Work in batches if the wok is small to maintain high heat. Another error is failing to slice the beef against the grain, which results in chewy, tough meat.

Do not add the sauce too early; it should only be added at the very end to prevent the vegetables from becoming soggy and to maintain the glossy, thick consistency of the glaze.

How to tell it’s done

The beef is done when it has achieved a deep brown sear on the exterior and reached an internal temperature of 145°F (63°C). At this stage, the meat should be tender yet firm to the bite.

The broccoli should be bright green and tender-crisp, meaning it is cooked through but still retains a satisfying snap. The sauce should be bubbling and thick enough to coat the back of a spoon, indicating it has properly reduced and emulsified with the ingredients.

  • Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest

Coming up in Part 3: common questions

  • Can this recipe be made with other vegetables?
  • How can the beef be kept tender?
  • Is a wok necessary for this dish?

Also in Part 3: variations (Spicy Beef and Broccoli, Ginger-Garlic Beef), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)