Beef and Broccoli Recipe Lau: Saucy Stir-Fry With Tangy Soy-Kissed Meat

This beef and broccoli recipe Lau delivers restaurant-quality stir-fry with tender beef, crisp-tender broccoli, and a glossy sauce that balances sweet, salty, and umami perfectly. The secret lies in high-heat searing and a sauce that caramelizes just enough to create depth without overpowering the natural flavors of the ingredients.

I've refined this version over years of testing, ensuring every element comes together in harmony.

The foundation of great Lau-style beef and broccoli starts with properly prepped beef—thinly sliced flank steak or sirloin that develops a beautiful sear while staying tender.

Broccoli florets are blanched first to maintain their vibrant green color and crisp texture, then tossed in the wok with the beef to absorb the sauce evenly.

The sauce itself is a carefully balanced blend of soy sauce, oyster sauce, garlic, ginger, and a touch of brown sugar that creates that signature tangy, slightly sweet profile.

What sets this recipe apart is the technique: a hot wok or skillet is essential for achieving that classic "wok hei" smoky aroma, while constant stirring ensures the beef stays tender and the broccoli remains vibrant.

The result is a dish that's restaurant-quality at home—juicy beef with crisp edges, bright green broccoli, and a sauce that clings perfectly to every bite. This is comfort food at its finest, with just the right balance of bold flavors and satisfying textures.

Perfect for weeknight dinners or weekend gatherings, this beef and broccoli comes together in about 30 minutes with minimal cleanup. Serve it over steamed rice to soak up every last bit of that flavorful sauce. Let's get cooking!

Ingredients for beef and broccoli recipe lau

Restaurant-quality stir-fry starts with these 14 ingredients—each playing a key role in balancing texture and flavor.

The flank steak is non-negotiable for this dish—its lean yet tender texture holds up perfectly to high-heat searing. Look for center-cut slices at your butcher or pre-sliced packages in the meat section of Whole Foods or Trader Joe's. If you can't find pre-sliced, ask for it to be cut thinly against the grain—this ensures tender bites. For broccoli, freshness matters most—avoid pre-cut florets that have turned yellow at the stems. Trader Joe's often carries perfect broccoli crowns that make floreting a breeze. The soy sauce should be light for brightness or dark for depth, but never reduced—you want that fresh umami punch. Lee Kum Kee is my go-to for oyster sauce, but any brand with no added MSG works.

No oyster sauce? Hoisin sauce or extra soy sauce will bridge the gap, though the dish loses some depth. Substitute brown sugar with honey or maple syrup if needed, but reduce by half since these are sweeter. The garlic and ginger can be swapped for garlic powder and ground ginger at a 1:1 ratio, though fresh is ideal. Vegetable oil is fine, but avocado oil has a higher smoke point for better searing. For the cornstarch, arrowroot powder works too—just use the same amount. The green onions add freshness, but scallions or chives will do in a pinch. If you're missing white pepper, a pinch of black pepper works, though it changes the color slightly.

Prep the broccoli first—blanch it in boiling water for 30 seconds before stir-frying to maintain its vibrant green color. The beef can be marinated in soy sauce for 15 minutes if time allows, but it's not required. Store prepped ingredients separately in the fridge for up to 2 days—the beef marinade and sauce can be made ahead and kept for 3 days. For leftovers, reheat gently in a skillet with a splash of water to prevent drying. This dish freezes beautifully for up to 2 months—just thaw and reheat slowly. The sauce thickens as it cools, so add a splash of water when reheating if needed.

Step-by-step instructions for beef and broccoli stir-fry

This method delivers perfectly tender beef with vibrant broccoli in a glossy, balanced sauce every time.

Slice the 1.25 lb flank steak thinly against the grain into ¼-inch strips—this ensures tender bites. Trim the 1.5 lb broccoli florets by cutting off the thick stems and separating into large, even clusters. Pat both dry with paper towels to remove excess moisture, which helps with searing.

In a small bowl, mix the 1 tbsp cornstarch with 1 tsp salt, 0.5 tsp black pepper, and 0.25 tsp white pepper. Toss the beef strips in this mixture until evenly coated. This creates a light crust that locks in juices during cooking. Let the beef sit for 10 minutes while you prep the aromatics.

Heat 0.25 cup vegetable oil in a 14-inch wok or skillet over high heat until shimmering. Add the beef in a single layer and sear undisturbed for 1-2 minutes until the edges turn deep brown. Stir-fry for another 30 seconds until fully cooked—it should reach 160°F internally. Remove beef and set aside.

In the same pan, add 0.25 cup vegetable oil (reserving some for later) and swirl to coat. Add 6 cloves minced garlic cloves and 1 tbsp finely grated fresh ginger, cooking for 30 seconds until fragrant. Add the 1.5 lb broccoli florets and stir-fry for 3-4 minutes until bright green and just tender-crisp. Don't overcook—they'll finish in the sauce.

Return the beef to the pan. Add 0.5 cup soy sauce, 0.25 cup oyster sauce, and 2 tbsp packed brown sugar. Stir well to combine, then pour in 1 tbsp toasted sesame oil. Let the mixture simmer for 2 minutes until slightly reduced and glossy. The sauce should coat the back of a spoon.

In a small bowl, whisk 1 tbsp cornstarch with 2 tbsp water to make a slurry. Slowly pour this into the pan while stirring constantly—this thickens the sauce beautifully. Cook for 1 minute until the sauce reaches your desired consistency. If too thick, add 1-2 tbsp water to loosen.

Garnish with 4 whole green onions, sliced thinly on the bias. Toss everything together gently to distribute the sauce evenly. The beef should be deep brown, broccoli vibrant green, and sauce glossy with a slight sheen. Serve immediately over steamed jasmine rice for the full experience.

This stir-fry tastes best fresh off the heat when the sauce is still glossy. The balance of salty soy, sweet brown sugar, and umami oyster sauce creates that signature tangy flavor that makes this dish so addictive. Leftovers keep well for 2 days in the fridge, but they won't taste quite as vibrant.

Troubleshooting this recipe

Overcooked Broccoli Fix

If your broccoli turns mushy instead of crisp-tender, it's likely overcooked during stir-frying. The key is to blanch florets in boiling water for 30 seconds before stir-frying—this preserves color and texture.

For already overcooked broccoli, toss it with 1 tsp soy sauce and ½ tsp sesame oil, then microwave for 15 seconds to revive some crunch. 🥦

Sauce Too Thin?

A runny sauce usually means the cornstarch slurry didn't thicken properly. Remove the beef and broccoli, then whisk 1 tsp cornstarch with 1 tbsp cold water and stir into the pan.

Cook for 30 seconds until thickened. For prevention, always cook the slurry over medium-high heat while stirring constantly—this ensures proper thickening. 🥄

Beef Too Tough

Tough beef almost always means it wasn't sliced thinly enough or cooked at too low heat. For next time, slice against the grain into ¼-inch strips and sear over high heat until edges brown in 1-2 minutes.

If already overcooked, shred the beef and return it to the pan with 1 tbsp soy sauce and 1 tsp brown sugar to restore moisture. 🥩

Lacking Wok Hei

The signature smoky aroma ("wok hei") fades when cooking at low heat or in a small pan. Use a 14-inch wok or cast-iron skillet over high heat—you should see smoke when adding oil.

For extra aroma, add ½ tsp smoked paprika to the sauce or finish with a quick 30-second blast of a kitchen torch. ⚡

Sauce Too Salty

If the sauce tastes overwhelmingly salty, balance it with 1 tsp brown sugar or ½ tsp honey to mellow the flavor. For a more dramatic fix, stir in 2 tbsp water and 1 tsp cornstarch to dilute while thickening.

Always taste as you go—adding a splash of rice vinegar (½ tsp) can also brighten the profile. 🧂

Frequently asked questions