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Cut Up London Broil on a Sheet Pan with Butter and Rosemary.
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5 from 8 votes

London Broil

London Broil is a lean cut of beef that is marinated and then broiled on high heat for a short time to your desired doneness, resulting in a tender and flavorful steak.
Prep Time10 minutes
Cook Time15 minutes
Marinating Time2 hours
Total Time2 hours 25 minutes
Course: Dinner, Main Course
Keyword: London Broil
Servings: 6 people
Calories: 394kcal
Author: Amanda Rettke--iamhomesteader.com

Ingredients

  • 2 pounds London broil, flank steak, skirt steak, or top-round steak
  • 3 cloves garlic, minced
  • ¼ cup (58 g) soy sauce
  • ¼ cup (53 g) extra-virgin olive oil, plus 1 tablespoon
  • ¼ cup (63.75 g) balsamic vinegar
  • 1 teaspoon paprika
  • ½ teaspoon kosher salt
  • ½ teaspoon black pepper
  • parsley, chopped for garnish
  • cowboy butter, for serving

Instructions

  • To a small bowl, add garlic, soy sauce, olive oil, balsamic vinegar, paprika, salt, and pepper. Mix until combined.
  • To a zippered plastic bag, add the London broil and the marinade. Refrigerate for at least 2 hours, up to overnight.
  • When ready, take the London Broil out of the refrigerator about 30 minutes before you are ready to cook it to allow it to come to room temperature.
  • Preheat your oven to broil, positioning the rack in the middle of the oven.
  • Remove the London Broil from the marinade, discarding the marinade.
  • To a large skillet over high heat, add the extra tablespoon of oil. When hot, sear the London Broil on both sides until browned, about 1-2 minutes per side.
  • Transfer the skillet to the middle rack in the preheated oven.
  • Broil for 10-12 minutes, flipping halfway, or until the internal temperature reaches 135°F (medium rare), or your desired doneness.
  • Remove the London Broil from the oven and let it rest for 10 minutes.
  • When ready to serve, slice against the grain into ¼-inch pieces and garnish with parsley. Top with cowboy butter (optional).

Notes

When Is Steak Done?

Determining when your flank steak is done cooking is really up to you. A meat thermometer comes in handy to check for doneness. Just because the outside looks amazing doesn't mean it's ready to be removed from the oven or grill. Depending on your preference, here are some internal temperatures you can use as a guide when cooking steak:
125°F = Rare--Bright red center; cool to warm to the touch
130-135°F = Medium Rare--Dark pink red color center; warm to the touch
140°F = Medium--Pink center; completely warm to the touch
145°F = Medium-well--Mostly brown center with a tiny bit of pink in the middle
It's important to remember that it will continue to cook a little bit after it's removed from the oven or grill. Give it a chance to rest before cutting into it!

Nutrition

Serving: 5ounces | Calories: 394kcal