Beef and Broccoli

Method

1. Velvet the beef by tossing the thin-sliced flank steak with 1 tbsp soy sauce and 1 tbsp cornstarch. Let it sit for 10 minutes. The cornstarch creates a thin protective barrier around each slice that seals in moisture during high-heat cooking. Combined with the soy sauce, it also promotes browning and adds a subtle savory depth to the surface.

2. Blanch the broccoli in a pot of boiling salted water for 60 seconds — just until bright green and barely tender. Immediately transfer to a bowl of ice water to stop the cooking. This two-step process (blanch and shock) locks in the color and texture. Drain well — excess water in the wok causes dangerous splattering and steaming.

3. Mix the sauce in a small bowl: soy sauce, oyster sauce, brown sugar, sesame oil, cornstarch, and water. Stir until the sugar and cornstarch dissolve. Set it next to the stove — you'll need it in about 3 minutes.

4. Heat your wok over high heat until smoking. Add 1 tbsp oil, swirl, and add the beef in a single layer. Don't stir for 60 seconds — let a sear develop. Then toss for another 60 seconds until just cooked through. The velveted coating should be lightly browned and glossy. Remove immediately to a plate.

5. Add the remaining oil to the wok. Add the blanched broccoli and toss for 60 seconds to heat through and pick up some wok char. Add garlic and ginger, toss for 30 seconds until fragrant. The aromatics go in late because they burn in seconds over this heat.

6. Return the beef to the wok. Give the sauce a quick stir (cornstarch settles) and pour it in. Toss everything together for 60 seconds until the sauce thickens into a glossy coating that clings to every piece. Serve immediately over steamed rice with a sprinkle of sesame seeds.

Equipment

• Wok or large skillet (12-inch minimum) Recommended: Joyce Chen 14-Inch Carbon Steel Wok
• Small pot for blanching
• Mixing bowls Recommended: Vollrath Stainless Steel Mixing Bowls Set
• Sharp knife Recommended: Victorinox Fibrox Pro 8-Inch Chef's Knife · Also good: Victorinox Fibrox Pro 8-Inch Chef's Knife
• Stockpot Recommended: Tramontina 12-Quart Stainless Steel Stock Pot
• Wok Recommended: Joyce Chen 14-Inch Carbon Steel Wok
• Food processor Recommended: Vitamix VX1

Chef Notes

• The most important thing: Velvet the beef. Tossing thin-sliced flank steak in soy sauce and cornstarch before searing creates a silky coating that protects the meat from the intense wok heat. This is the technique that makes restaurant beef and broccoli taste completely different from the home version.
• Slice the flank steak against the grain and as thin as possible. Partially freeze it for 20 minutes to make slicing easier.
• Blanch the broccoli for 60 seconds in boiling water, then shock in ice water. This pre-cooks it to bright green and crisp-tender so it only needs a quick toss in the wok. Raw broccoli in a stir-fry either overcooks the beef or undercooks the broccoli.
• Mix the sauce in advance. Once you start stir-frying, there's no time to measure ingredients.
• The wok must be screaming hot. If you don't see wisps of smoke from the oil, wait longer.

Common Substitutions

Ingredient	Substitution	Notes
Soy sauce	Tamari or coconut aminos	Tamari is gluten-free. Coconut aminos are lower sodium.
Wok	Large cast iron skillet	Preheat until smoking — you need the same intense heat.
Food processor	Blender or mortar and pestle	Blender for smooth. Mortar for chunky.

What You're Practicing

Velveting is the foundational technique of Chinese stir-fry. The cornstarch slurry creates a physical barrier between the protein and the intense heat of the wok, keeping the interior tender while the exterior develops flavor. Once you master this with beef, apply it to chicken, shrimp, and pork. Visit Techniques for more on high-heat cooking and wok technique.

Blanching and shocking vegetables is a professional kitchen technique that gives you precise control over doneness. By pre-cooking the broccoli to exactly the right texture, you eliminate the timing problem that plagues most stir-fries — where either the protein overcooks waiting for the vegetables, or the vegetables are raw when the protein is done. This technique applies to green beans, asparagus, snap peas, and any vegetable you want bright and crisp-tender.