This is the Chinese-American takeout classic I make at home now that I learned the velveting technique that makes restaurant beef so tender. Beef and broccoli stir fry takes flank steak sliced paper-thin against the grain, marinates it briefly in soy sauce and cornstarch, sears it in a screaming hot wok, then tosses it with crisp-tender broccoli florets in a glossy garlic-ginger-soy-oyster sauce.
Fun fact: the trick that makes restaurant beef so tender (compared to home-cooked stir-fries) is called “velveting” — coating sliced beef in cornstarch and a touch of liquid before cooking. The cornstarch creates a protective coating that locks in moisture and prevents the meat from overcooking. This 1500-year-old Chinese technique was kept secret in restaurant kitchens for centuries before food writers exposed it in the 1980s.
Why this recipe works
SLICE BEEF AGAINST THE GRAIN. Cutting against the grain shortens muscle fibers = tender bites. With the grain = jaw-workout chewy.
Slice flank steak ACROSS the grain into 1/4-inch strips (freeze beef 30 min first for easier slicing). In a bowl, toss with 1 tbsp soy sauce, 1 tbsp cornstarch, and 1 tsp sesame oil. Let sit 15 min.
Step 2: Whisk the sauce
In a small bowl, whisk together soy sauce, oyster sauce, brown sugar, rice vinegar, and beef broth. In a separate bowl, mix 1 tbsp cornstarch + 2 tbsp cold water for slurry.
Step 3: Blanch the broccoli
Bring water to a boil in a pot. Add broccoli florets; cook 60 seconds. Drain immediately and rinse with cold water. This par-cooks them to crisp-tender.
Step 4: Sear the beef
Heat 2 tbsp oil in a wok or large skillet over highest possible heat until smoking. Add velveted beef in a single layer; sear 60-90 seconds undisturbed. Stir-fry another 60 seconds until just cooked. Remove to a plate.
Pour the sauce into the wok; bring to a simmer. Stir in cornstarch slurry; cook 60 seconds until thickened. Return beef to the wok; toss everything to coat for 30 seconds. Finish with sesame oil. Serve over rice with sesame seeds and scallions.
Nutrition information
Calories: 380 kcal per serving (without rice)
Protein: 32 g
Carbohydrates: 20 g
Fat: 18 g
Iron: 25% DV
Vitamin C: 130% DV
Pro tips for the best beef and broccoli stir fry
FREEZE beef 30 min before slicing for paper-thin slices. Firm beef cuts cleaner than soft beef.
Skirt steak or sirloin work as substitutes for flank — same velveting technique.
Blanch broccoli FIRST. Raw broccoli takes too long to cook in the wok and gets steamed. Blanched = crisp-tender in 60 sec.
For extra heat, add 1 tsp Sichuan chili oil to the sauce — fragrant numbing spice.
Frequently asked questions
Can I use a different cut of beef?
Yes — sirloin, ribeye, or skirt steak all work. Avoid stew meat (too tough) or ground beef (wrong texture for stir-fry).
Why is my beef tough?
Either sliced WITH grain (instead of against) OR no velveting. Both steps are essential. Beef should slice into thin strips that bend, not chunks.
Can I make this gluten-free?
Sub tamari for soy sauce and find GF oyster sauce (or use 1 tbsp mushroom soy sauce + 1 tbsp brown sugar).
What other veggies work?
Bell peppers, snap peas, baby corn, water chestnuts, bok choy, mushrooms. Add tender veggies later, harder ones earlier.
How long do leftovers keep?
3 days refrigerated. Reheat in a hot skillet (not microwave — beef turns rubbery). Add a splash of broth to refresh sauce.
