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Smoked London Broil
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5 from 3 votes

Grilled London Broil Recipe

London broil is a type of dish where the chef takes a cut of beef, commonly broiled flank steak, though top round steak and coulotte have also been used in more modern times; marinates it and then cuts the beef across the grain, resulting in thin strips. Both the dish and the term are products of North America, rather than any part of the United Kingdom.
Prep Time12 hrs
Cook Time30 mins
Course: Main Course
Cuisine: American
Keyword: Grilled Beef, London Broil
Servings: 1
Calories: 180kcal


  • Mixing Bowl
  • Whisk or wooden spoon
  • Large, resealable plastic bag
  • Shallow dish
  • Refrigerator
  • Grill
  • Coals
  • Tongs
  • Knife
  • Cutting board for beef


  • 2.5 lbs Top round steak
  • 4 Cloves, garlic, large, minced
  • 4 tbsp Vinegar, balsamic
  • 4 tbsp Juice, lemon, fresh
  • 3 tbsp Mustard, Dijon
  • 1.5 tbsp Worcestershire sauce
  • 1 tbsp Soy sauce
  • 1 tsp Oregano, dried and crumbled
  • 1 tsp Basil, dried and crumbled
  • 1 tsp Thyme, dried and crumbled
  • 1/2 tsp Pepper flakes, red, hot, dried
  • 2/3 cup Oil, olive


  • Whisk everything but the steak into your mixing bowl and mix until everything is evenly combined and blended in.
  • Place the steak into your plastic bag and drown it in the marinade.
  • Seal the bag, pressing the air out of the bag as you go along, and then lay it fully sealed within a shallow dish.
  • Marinate the meat overnight until it chills, giving it a single turn to make sure both sides are evenly coated.
  • When you are ready to grill, remove the steak from the bag and dispose of the bagged marinade.
  • Grill the steak on an oiled oven rack, roughly 4″ above the coals and cook for 9-10 minutes.
  • Turn the steak over and grill the other side for 9-10 minutes. your goal is to reach an internal temperature range of 135°F-140°F for medium-rare meat.
  • Transfer the finished steak to your beef cutting board and give it 10 minutes to rest.
  • Cut the rested meat across the grain at a diagonal angle, aiming for thin slices.
  • Serve as is, on sandwiches, in tacos or however else you might fancy enjoying some succulent, thinly-sliced beef.


Serving: 3oz | Calories: 180kcal