🥩 Grilled London Broil with Garlic-Herb Marinade
London Broil isn't a specific cut, but a preparation style. When marinated properly and grilled just right, this lean and affordable cut (usually top round) transforms into a tender, flavorful steak perfect for slicing thin and serving family-style.
🕒 Prep & Cook Time
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Prep Time: 10 minutes
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Marinate Time: 4 to 12 hours (overnight recommended)
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Grill Time: 12–16 minutes
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Rest Time: 5–10 minutes
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Total Time: About 5–13 hours (includes marinating)
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Servings: 4–6
🛒 Ingredients
For the Marinade:
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½ cup olive oil
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⅓ cup balsamic vinegar or red wine vinegar
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3 tablespoons soy sauce
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2 tablespoons Worcestershire sauce
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3 garlic cloves, minced
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1 tablespoon Dijon mustard
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1 tablespoon brown sugar or honey
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1 teaspoon dried oregano or Italian seasoning
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½ teaspoon crushed red pepper flakes (optional)
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Salt & freshly ground black pepper to taste
For the London Broil:
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1½ to 2 lbs London Broil (usually top round or flank steak)
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Chopped parsley or rosemary, for garnish (optional)
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Lemon wedges, for serving (optional)
🔥 Instructions
Step 1: Marinate the London Broil
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In a bowl or large measuring cup, whisk together all marinade ingredients.
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Place steak in a large zip-top bag or shallow glass container.
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Pour marinade over the steak, ensuring it’s well coated.
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Seal and refrigerate for at least 4 hours, preferably overnight (up to 12 hours).
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Remove from fridge 30 minutes before grilling to bring to room temperature. Pat dry for better searing.
Step 2: Preheat the Grill
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Heat your grill to medium-high (425–450°F).
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Clean and oil the grates well to prevent sticking.
Step 3: Grill the London Broil
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Place the steak over direct heat.
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Grill for 6–8 minutes per side, turning once, depending on thickness.
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Use a meat thermometer to check doneness:
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Medium-Rare: 130–135°F
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Medium: 140–145°F
Do not overcook—London Broil is lean and best served pink inside.
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Step 4: Rest and Slice
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Remove from grill and let rest 5–10 minutes, tented with foil.
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Slice thinly against the grain for maximum tenderness.
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Garnish with chopped herbs or a squeeze of lemon juice if desired.
✅ Tips & Variations
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Tenderness tip: Marinating is crucial—don’t skip it! The acidity helps break down the muscle fibers.
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Don’t overcook: Medium-rare to medium is ideal. London Broil gets tough if overdone.
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Add a compound butter: Finish slices with a pat of garlic-herb or blue cheese butter.
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Use leftovers: Great for sandwiches, salads, or tacos the next day.