London Broil – Simple, Flavorful, and Perfectly Tender

London broil sounds fancy, but it’s really just a smart way to turn an affordable cut of beef into something tender, juicy, and full of flavor. You marinate the steak, cook it quickly at high heat, and slice it thin against the grain. That’s the whole trick.

It’s perfect for weeknights, date nights, or feeding a crowd without breaking the bank. With the right marinade and timing, you’ll get big steakhouse flavor at home—no special equipment needed.

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London Broil – Simple, Flavorful, and Perfectly Tender

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Prep Time 15 minutes mins

Cook Time 20 minutes mins

Total Time 35 minutes mins

Servings: 6 servings

Ingredients
Method

Ingredients

  

• 1.5 to 2 pounds top round, flank, or sirloin steak (about 1 to 1.5 inches thick)
• 3 tablespoons olive oil
• 3 tablespoons soy sauce (or tamari)
• 2 tablespoons Worcestershire sauce
• 2 tablespoons balsamic vinegar (or red wine vinegar)
• 1 tablespoon Dijon mustard
• 2 teaspoons brown sugar or honey
• 3 garlic cloves, minced
• 1 teaspoon black pepper
• 1 teaspoon kosher salt (plus more for finishing)
• 1 teaspoon smoked paprika (optional, for a deeper crust)
• 1/2 teaspoon red pepper flakes (optional, for heat)
• Fresh herbs for serving (parsley or chives, optional)
• Butter (1 tablespoon, optional for finishing)

Method

 

1. Score the steak. Lightly score the surface in a crosshatch pattern, about 1/8 inch deep.

   This helps the marinade penetrate and promotes even cooking.

2. Mix the marinade. Whisk olive oil, soy sauce, Worcestershire, vinegar, Dijon, brown sugar, garlic, black pepper, salt, smoked paprika, and red pepper flakes in a bowl.
3. Marinate. Place the steak in a zip-top bag or shallow dish and pour the marinade over it. Press out the air, seal, and refrigerate for at least 2 hours, up to overnight. Flip once halfway if possible.
4. Bring to room temp. Remove the steak from the fridge 30–45 minutes before cooking.

   Pat it dry very well; moisture prevents a good sear.

5. Choose your heat. Preheat a broiler with the rack 6 inches from the element, or heat a heavy skillet or grill over high until smoking. You want very high heat for a quick cook and a great crust.
6. Cook fast. Broiler: Broil 4–6 minutes per side for medium-rare, depending on thickness.
7. Skillet: Sear 4–5 minutes per side in a lightly oiled, ripping-hot pan.
8. Grill: Grill over high heat 4–5 minutes per side.
9. Optional butter baste. In the last minute, add 1 tablespoon butter and spoon it over the steak for extra richness.
10. Rest. Transfer to a cutting board and let rest 8–10 minutes. This keeps the juices in the meat.
11. Slice against the grain. Identify the muscle fibers and cut thin slices across them at a slight bias.

    This is key to tenderness.

12. Finish and serve. Sprinkle with a pinch of flaky salt, chopped herbs, or a squeeze of lemon. Serve with roasted potatoes, salad, or grilled vegetables.

Why This Recipe Works

This method focuses on three things: flavor, heat, and slicing. The marinade adds brightness and tenderness, while high heat gives you a deep, savory crust.

Then you finish by slicing thinly against the grain for a soft bite. Each step is simple, but together they deliver a steak that tastes far more expensive than it is. It’s reliable, forgiving, and adaptable to whatever you have in your pantry.

What You’ll Need

• 1.5 to 2 pounds top round, flank, or sirloin steak (about 1 to 1.5 inches thick)
• 3 tablespoons olive oil
• 3 tablespoons soy sauce (or tamari)
• 2 tablespoons Worcestershire sauce
• 2 tablespoons balsamic vinegar (or red wine vinegar)
• 1 tablespoon Dijon mustard
• 2 teaspoons brown sugar or honey
• 3 garlic cloves, minced
• 1 teaspoon black pepper
• 1 teaspoon kosher salt (plus more for finishing)
• 1 teaspoon smoked paprika (optional, for a deeper crust)
• 1/2 teaspoon red pepper flakes (optional, for heat)
• Fresh herbs for serving (parsley or chives, optional)
• Butter (1 tablespoon, optional for finishing)

How to Make It

1. Score the steak. Lightly score the surface in a crosshatch pattern, about 1/8 inch deep.

   This helps the marinade penetrate and promotes even cooking.

2. Mix the marinade. Whisk olive oil, soy sauce, Worcestershire, vinegar, Dijon, brown sugar, garlic, black pepper, salt, smoked paprika, and red pepper flakes in a bowl.
3. Marinate. Place the steak in a zip-top bag or shallow dish and pour the marinade over it. Press out the air, seal, and refrigerate for at least 2 hours, up to overnight. Flip once halfway if possible.
4. Bring to room temp. Remove the steak from the fridge 30–45 minutes before cooking.

   Pat it dry very well; moisture prevents a good sear.

5. Choose your heat. Preheat a broiler with the rack 6 inches from the element, or heat a heavy skillet or grill over high until smoking. You want very high heat for a quick cook and a great crust.
6. Cook fast.
   • Broiler: Broil 4–6 minutes per side for medium-rare, depending on thickness.
   • Skillet: Sear 4–5 minutes per side in a lightly oiled, ripping-hot pan.
   • Grill: Grill over high heat 4–5 minutes per side.

   Use a thermometer for accuracy: 125–130°F for medium-rare, 135°F for medium.

7. Optional butter baste. In the last minute, add 1 tablespoon butter and spoon it over the steak for extra richness.
8. Rest. Transfer to a cutting board and let rest 8–10 minutes. This keeps the juices in the meat.
9. Slice against the grain. Identify the muscle fibers and cut thin slices across them at a slight bias.

   This is key to tenderness.

10. Finish and serve. Sprinkle with a pinch of flaky salt, chopped herbs, or a squeeze of lemon. Serve with roasted potatoes, salad, or grilled vegetables.

Keeping It Fresh

Store leftovers in an airtight container for up to 3 days. Keep the slices in their juices if possible to prevent drying.

Reheat gently in a hot skillet for 30–60 seconds per side, or warm briefly in the microwave under a damp paper towel. For longer storage, freeze sliced steak in freezer bags with a little marinade or pan juices for up to 2 months.

Health Benefits

• High in protein: Great for muscle repair and satiety.
• Iron and B12: Supports energy and red blood cell health.
• Customizable marinade: You control sodium, sugar, and oil. Use low-sodium soy sauce and moderate sweeteners.
• Lean cuts: Top round and flank are naturally lean, especially when trimmed.
• Balanced plate: Pair with fiber-rich sides—salad, roasted vegetables, or whole grains—to round out the meal.

Pitfalls to Watch Out For

• Overcooking: Lean cuts toughen quickly.

  Pull at 125–130°F for medium-rare and rest to finish cooking.

• Skipping the pat-dry step: Wet surfaces won’t sear. Blot the steak before it hits the heat.
• Marinating too short or too long: Less than 2 hours gives less flavor; beyond 24 hours can make the surface mushy.
• Cutting with the grain: This makes it chewy. Always slice thinly against the grain.
• Crowding the pan: It steams instead of browns.

  Use a large skillet or cook in batches.

Variations You Can Try

• Garlic-Herb: Add fresh rosemary, thyme, and lemon zest to the marinade; finish with herb butter.
• Chili-Lime: Use lime juice, chili powder, cumin, and a touch of honey. Great for tacos or fajita bowls.
• Teriyaki-Style: Swap balsamic for rice vinegar, add ginger and a bit more brown sugar. Finish with sesame seeds and scallions.
• Coffee-Rubbed: Skip the marinade and rub with ground coffee, brown sugar, paprika, and salt; sear hot for a smoky crust.
• Sous Vide Finish: Cook at 130°F for 2–3 hours, chill briefly, then sear in a blazing-hot pan for 60–90 seconds per side.
• Sheet Pan Dinner: Roast the steak under the broiler with asparagus or green beans tossed in olive oil and salt for a one-pan meal.

FAQ

What cut of meat is best for London broil?

Top round is most traditional, but flank steak and sirloin work well.

Choose a steak 1 to 1.5 inches thick for even cooking and a good sear.

How long should I marinate the steak?

Marinate for at least 2 hours for flavor, and up to 12–24 hours for maximum impact. Avoid going beyond 24 hours to prevent a mushy texture.

Can I cook London broil in the oven without a broiler?

Yes. Sear the steak in a hot oven-safe skillet on the stovetop, then finish in a 450°F oven for 4–7 minutes, depending on thickness.

Use a thermometer for perfect doneness.

How do I keep it tender?

Don’t overcook, let it rest, and slice very thin against the grain. These three steps make the biggest difference in tenderness.

What should I serve with London broil?

Roasted potatoes, sautéed mushrooms, a crisp green salad, chimichurri, or garlicky green beans all pair nicely. Keep sides simple to let the steak shine.

Is it okay to reuse the marinade as a sauce?

Only if you boil it for at least 3 minutes to kill bacteria.

For convenience, set aside a small portion of unused marinade before it touches the raw meat.

How do I know when it’s done without a thermometer?

Use the finger-test for doneness and watch the juices. For medium-rare, the steak should spring back gently and juices will run slightly pink. A thermometer is more reliable, though.

Can I make this recipe on a gas grill?

Absolutely.

Preheat on high, clean and oil the grates, then grill 4–5 minutes per side. Keep the lid closed to maintain high heat.

What’s the best way to slice for sandwiches?

Chill the cooked steak briefly to firm it up, then slice paper-thin against the grain. It’s perfect for steak sandwiches or salads.

How do I reduce sodium?

Use low-sodium soy sauce and reduce salt in the marinade.

Finish with a squeeze of lemon instead of extra salt to brighten flavors.

In Conclusion

London broil proves that smart technique beats expensive ingredients. With a bold marinade, high heat, and the right slicing, you’ll get a tender, juicy steak every time. It’s budget-friendly, quick, and easy to customize for any flavor mood.

Keep a steak in the fridge, and you’re just a few steps away from a standout dinner anyone can master.