Soups & Stews
This Lau-style beef and broccoli recipe delivers the perfect balance of wok-hei crispy beef and tender broccoli coated in a silky stir-fry sauce. The secret lies in high-heat wok technique and a well-reduced sauce that clings to every bite. After years of perfecting this dish, I’ve cracked the code for achieving that signature crisp-tender texture at home—no restaurant wok required.
The foundation starts with thinly sliced beef marinated in a simple soy-ginger mixture, then quickly seared in a screaming-hot wok until golden and caramelized. Broccoli florets are blanched just until vibrant green, ensuring they stay crisp when tossed with the beef. What makes this recipe special is the sauce—a velvety blend of soy, garlic, ginger, and a touch of sugar, thickened with a cornstarch slurry for that signature glossy finish.
By the time you plate it, you’ll have perfectly seared beef with crispy edges, bright green broccoli, and a sauce that’s rich yet light enough to coat every bite. The aroma alone—smoky, garlicky, and slightly sweet—will have everyone at the table asking for seconds. This is the kind of dish that tastes like a home-cooked version of your favorite Lau takeout.
Serve it over steamed rice for the full experience, or as a standalone stir-fry that’s hearty enough for a main course. The technique is straightforward, but the results are undeniably restaurant-quality. Let’s get cooking!
Ingredients for beef and broccoli recipe lau
Here’s what you need to recreate Lau’s signature wok-hei beef and broccoli at home.
| Ingredient | Amount | Notes |
|---|---|---|
| Flank Steak 🥩 | 1 ½ lb | Thinly sliced against grain |
| Broccoli Florets 🥦 | 2 cups | Large florets, cut into bite-sized pieces |
| White Rice Vinegar 🍶 | 2 tbsp | For marinade and sauce |
| Soy Sauce 🥢 | ½ cup | High-quality light soy preferred |
| Sesame Oil 🌿 | 1 tbsp | Toasted, for aroma |
| Fresh Ginger 🧄 | 2 tbsp | Finely minced, peeled |
| Garlic Cloves 🧄 | 6 cloves | Minced, fresh preferred |
| Cornstarch 🌾 | 1 tbsp | For sauce slurry |
| Brown Sugar 🍯 | 1 tbsp | Light, for balance |
| Vegetable Oil 🫒 | ½ cup | High smoke point |
| Sesame Seeds 🌰 | 1 tbsp | Toasted, for garnish |
| Green Onions 🧅 | 3 whole | Sliced, for garnish |
| Salt 🧂 | 1 tsp | Kosher or sea salt |
| Black Pepper 🌶️ | ½ tsp | Freshly ground |
The steak is everything here. Flank steak is ideal—lean, flavorful, and perfect for slicing thin against the grain. Grab it from Whole Foods or your local butcher if you want the best quality. Look for good marbling, but don’t stress if it’s not perfect. I usually buy it pre-sliced from the Asian market—just ask for 'thinly sliced beef'. If you’re slicing yourself, use a sharp knife and slice at a 45-degree angle for maximum surface area. Fresh ginger and garlic? Don’t skip the mincing—the finer, the better for that authentic flavor. And trust me, toasted sesame oil makes all the difference in the aroma.
No flank steak? Sirloin or ribeye works in a pinch, but slice it thinner. Running low on soy sauce? Coconut aminos is a decent substitute, but it’s not identical. The sauce slurry is non-negotiable though—cornstarch and cold water is the only way to get that signature glossy finish. Brown sugar adds depth, but honey or maple syrup works if you’re avoiding refined sugar. Broccoli? Baby broccoli florets are perfect, but regular florets cut into bite-sized pieces work too. And if you’re short on sesame seeds, toasted peanuts add a nice crunch instead.
This dish tastes even better the next day—make extra. Store leftovers in an airtight container for up to 4 days in the fridge. For longer storage, freeze portions for up to 3 months. Reheat gently in a wok or skillet with a splash of water to keep everything crisp. Garnish with fresh green onions and sesame seeds right before serving—that’s when it looks restaurant-worthy. And if you’re serving a crowd, double the sauce recipe—it disappears fast.
Why You'll Love This Recipe
- One-Pan Magic: I swear by this—just sear the flank steak, toss in the broccoli, and let the soy and rice vinegar work their magic. No extra pots, no fuss, and that sesame oil finish ties it all together in minutes.
- Umami Bomb: The combo of soy sauce and white rice vinegar? It’s like a flavor explosion in your mouth. The steak stays tender while the broccoli gets that perfect crisp-tender bite—honestly, the first time I made it, I ate straight from the pan.
- Lunchbox Hero: Between us, this is my go-to for meal prep. The beef slices neatly, the broccoli holds up, and the sauce clings to everything. Pack it cold or reheat it—it’s just as good the next day, and my kids actually finish their portions.
- Budget Powerhouse: Flank steak is affordable, broccoli’s cheap, and a little sesame oil goes a long way. I stretch this into three meals for my family without breaking the bank, and the leftovers? Even better the second time around.
Step-by-step instructions for wok-hei crispy beef with silky stir-fry sauce
Here's how to nail that perfect wok-hei texture—crispy edges, tender beef, and a glossy sauce that clings.
Marinate and Slice the Flank Steak for Maximum Flavor
Slice the 1.5 lb flank steak thinly against the grain into ¼-inch strips. The grain direction is crucial—look for those visible muscle fibers and cut perpendicular to them. This ensures each bite is fork-tender.
In a bowl, combine the 2 tbsp white rice vinegar, 0.5 cup soy sauce, 1 tbsp sesame oil, 2 tbsp minced fresh ginger, 6 minced garlic cloves, 1 tsp salt, and 0.5 tsp black pepper. Add the sliced steak and toss to coat evenly. Let it marinate for at least 30 minutes (I prefer 1 hour for deeper flavor). The acid in the vinegar tenderizes the meat while the soy sauce builds umami.
Prepare the Broccoli and Sauce Base
Cut the 2 cups broccoli florets into bite-sized pieces. Blanch them in boiling water for 1 minute, then plunge into ice water to stop cooking. This preserves their vibrant color and slight crunch. Drain well and set aside—they'll finish cooking in the wok.
In a small bowl, whisk together 1 tbsp cornstarch and 1 tbsp brown sugar with 2 tbsp water to make a slurry. This will thicken the sauce beautifully. Keep it nearby—you'll need it in the next step.
Achieve Wok-Hei Crispy Beef Through High Heat
Heat a wok or large skillet over high heat until it's screaming hot. Add 0.5 cup vegetable oil and swirl to coat the surface. Add half the marinated steak in a single layer—don't crowd the pan. Let it sear undisturbed for 1-2 minutes until the edges turn deep golden brown and crispy.
Stir-fry for another 30 seconds, then remove the beef to a plate. Repeat with the remaining steak. The high heat creates that signature wok-hei—smoky, crispy edges with tender centers. If the oil smokes too much, reduce the heat slightly but keep it as hot as possible.
Build the Silky Stir-Fry Sauce
Keep the wok on high heat and add the blanched broccoli. Stir-fry for 2 minutes until bright green and slightly blistered. Push the broccoli to one side and add the cornstarch slurry to the empty space in the wok.
Stir constantly for 30 seconds until the sauce thickens slightly. Pour in the remaining 2 tbsp white rice vinegar and 0.5 cup soy sauce from the marinade. Let it simmer for 1 minute until glossy and reduced slightly. The sauce should coat the back of a spoon—if it's too thick, add 1 tablespoon water to loosen.
Combine and Finish with Aromatics
Return the crispy beef to the wok and toss everything together for 1 minute. The residual heat will finish cooking the beef while coating it in that silky sauce. Taste and adjust seasoning—you might need a touch more soy sauce or a pinch of salt.
Turn off the heat and stir in 1 tbsp sesame seeds and 3 sliced green onions. Garnish with extra sesame seeds and serve immediately over steamed rice. The contrast of crispy beef, tender broccoli, and glossy sauce makes every bite irresistible. Leftovers? Toss them in the fridge and reheat in a hot wok for another crispy finish.
Pro Tips For Making Beef And Broccoli Recipe Lau
- Slice Against the Grain: Flank steak’s tough fibers run diagonally—cutting perpendicular to them makes each bite tender. I used to ignore this and ended up with chewy strips; now I measure the grain first, then slice at a 45-degree angle. A sharp knife and steady hand save you from overworking the meat.
- Blanch Broccoli First: Toss florets in boiling water for 30 seconds, then ice bath. This stops cooking, brightens color, and keeps them crisp. I skipped this once and got sad, limp broccoli—now it’s non-negotiable. Works even if you’re short on time.
- Use Two Soy Sauces: Swap half the regular soy for light soy (or tamari). Light soy adds depth without overpowering, and the color stays vibrant. I learned this after a batch tasted flat—now the sauce has layers. No light soy? Double-check your label; some "regular" soy is already diluted.
- Deglaze with Vinegar Last: Let the beef brown in the pan, then add a splash of white rice vinegar after removing the meat. The acid cuts through the fond, balancing the soy’s saltiness. I used to add it mid-cook and ended up with a dull sauce—now it’s bright and tangy.
Dietary considerations for this recipe
Gluten-Free Adaptation
Swap the regular soy sauce for tamari (gluten-free soy sauce) to keep the umami depth without gluten. I use San-J brand tamari—it’s rich and has the same savory punch. Just
Low-Carb Options
Skip the rice and serve your beef and broccoli over cauliflower rice for a low-carb twist. I like to toast it in the wok with a little sesame oil and garlic before adding the stir-fry. You’ll still get that satisfying texture contrast, just with fewer carbs. For extra protein, add a fried egg on top—it’s a classic Lau-style hack. 🍳
Dairy-Free Considerations
This dish is naturally dairy-free, but double-check your soy sauce and sesame oil for accidental additives. Some brands add dairy in processing. If you’re serving alongside a side like egg rolls, opt for vegan versions. The brown sugar can sometimes contain dairy traces, so coconut sugar is a safe alternative. Always read labels carefully. ✨
Allergen Awareness
Sesame is a common allergen, so if anyone has a sensitivity, replace sesame oil with avocado oil and skip the sesame seeds for garnish. For nut allergies, avoid any garnishes like toasted peanuts. The cornstarch slurry is safe unless someone has a corn allergy—use arrowroot powder instead. Always confirm with guests before serving. 💡
Protein Swaps
For a vegetarian version, replace the beef with extra-firm tofu or mushrooms like shiitake. Press and slice the tofu thin, then marinate it in the same sauce for 20 minutes before stir-frying. Mushrooms add a meaty texture—just cook them longer to mimic the beef’s chew. The broccoli and sauce stay identical, so the dish keeps its signature flavors. 🌿
Nutrition facts
Frequently asked questions
Why does the beef need to be sliced against the grain?
Slicing flank steak against the grain shortens the muscle fibers, making each bite tender rather than chewy. The grain runs lengthwise along the cut—look for those visible striations and slice perpendicular to them. This technique is key for achieving that perfect wok-hei texture where the edges stay crispy while the inside remains fork-tender.
Can I use frozen broccoli instead of fresh?
Fresh broccoli gives the best texture, but frozen works in a pinch. Just thaw it completely first, then drain well and pat dry. Skip the blanching step and cook the frozen florets directly in the wok for 3-4 minutes until bright green. The key is to avoid soggy broccoli—overcooking will turn it mushy.
What's the best way to get that crispy wok-hei texture at home?
Use a carbon steel wok or cast iron skillet heated to maximum temperature before adding oil. The secret is patience—let the beef sear undisturbed for 1-2 minutes until deep golden brown before stirring. If your pan isn't hot enough, the beef will steam instead of crisp. A blowtorch can help achieve restaurant-style char marks!
How do I adjust the sauce if it's too thick or too thin?
If the sauce is too thick, add 1 tablespoon water at a time while stirring. If it's too thin, mix ½ teaspoon cornstarch with 1 teaspoon water and stir it in. The sauce should coat the back of a spoon but still be pourable. Pro tip: Taste as you go—adjust soy sauce for saltiness or brown sugar for sweetness balance.
Can I make this dish ahead of time?
Yes, but handle it carefully. Assemble the dish and let it cool completely, then refrigerate in an airtight container for up to 3 days. Reheat in a wok or skillet over medium-high heat with a splash of water to revive the crispy texture. For best results, serve within 24 hours—the sauce and aromatics are freshest when hot.