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Sliced London Broil on cutting board.
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5 from 2 votes

Marinated London Broil (Easy 3-Ingredient Marinade)

My easy Marinated London Broil is the budget-friendly main course to make when you're craving an amazing steak but don't want to spend a ton of money.
Prep Time10 minutes
Cook Time10 minutes
marinating time6 hours
Total Time6 hours 30 minutes
Course: Main Course
Cuisine: American, English
Servings: 4
Author: James Delmage

Ingredients

  • 1 2 pound (900g) London Broil

For the marinade

  • 1 cup (240ml) soy sauce see notes below
  • 1/2 cup (120ml) water
  • 1 medium onion quartered
  • 6 cloves garlic
  • 1 teaspoon black pepper

Instructions

For the marinade

  • Blend all of the ingredients until smooth.

For the London Broil

  • Place the London Broil in a ziplock bag along with the marinade then place into a dish. Every few hours turn the bag to achieve even marination. It's best to marinate overnight, but a minimum of 6 hours will work.
  • Take the London Broil out of the fridge 1 hour before grilling. Pat the London broil very dry and heat a grill to 450-500°F.
  • Place the beef onto the hot grill and let sit for 1 minute. Flip it every minute until medium-rare (130°F), is achieved. This will take about 8-12 minutes of total grill time but check with an instant-read thermometer for accuracy.
  • Place the London broil onto a cutting board and tent with foil for at least 10 minutes before slicing against the grain. Enjoy!

Notes

  • About London Broil.  Most Butchers will sell a 2-inch thick cut of top round beef as "London Broil" but some will also sell other cuts.  Any lean cut of beef marinated overnight and cooked at high heat will work.
  • Broiler method.  Preheat the broiler to high and place the rack 3-4" below the element.  Place the dried off London Broil in a broiling pan and cook for 5 minutes on the first side and flip and cook for another 4 minutes to achieve a 130°F internal temperature.  Use an instant-read thermometer to verify. 
  • Accuracy. Use an instant-read thermometer placed into the center of the beef while cooking to ensure a juicy perfectly cooked London broil.
  • Soy sauce sodium.  For a lower salt version sub low-sodium soy sauce.  Low-sodium soy sauce has 35-50% less salt depending on the brand.
  • Leftovers. London Broil can be saved in the fridge for up to 3 days.

Nutrition

Calories: 401kcal | Carbohydrates: 3.7g | Protein: 68.4g | Fat: 10.5g | Saturated Fat: 3.6g | Cholesterol: 179mg | Sodium: 659mg | Fiber: 0.7g | Sugar: 1.3g | Calcium: 21mg | Iron: 6mg

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