½teaspooncrushed red pepper flakesmore or less to taste
2pounds round steak or flank steak
Instructions
For the London Broil Marinade, whisk together ⅓ cup pineapple juice, ⅓ cup low sodium soy sauce, 1 tablespoon Worcestershire sauce, 2 tablespoons extra virgin olive oil, 8 cloves garlic, ½ tablespoon dried minced onion, and ½ teaspoon crushed red pepper flakes.
Place the beef into a large storage bag or bowl and pour the marinade over the meat. Toss the meat in the marinade to coat and distribute the marinade evenly over the meat. Marinate the beef in the refrigerator for at least 2 hours and up to 24 hours. I find 8-12 hours best.
When ready to prepare, preheat the broiler on your oven to high heat and adjust an oven rack to be about 4-5 inches from the flame.
Remove the meat from the marinade and place it onto a sheet pan and discard the marinade.
Place the sheet pan into the oven and broil for 5 minutes. Remove from the oven and flip the meat and return to the oven and broil for 3-4 minutes or until it reaches an internal temperature of 130-132℉ (55-56℃) for medium-rare.
Remove the meat from the oven, place on a cutting board, loosely tent with foil, and allow to rest for 10 minutes. It will rise to about 135℉ (57℃) while resting.
After resting the London Broil, cut the beef against the grain (perpendicular to the parallel lines of muscle fiber running down the meat) into very thin slices. and serve immediately.
Notes
Cut of Beef: London Broil is not a cut of beef, but instead a preparation method using either flank or round steak. However, you may find it sold labeled as London Broil. Temperature of the Meat: London Broil is best served medium-rare, which is an internal temperature of 130-135°F (54-57°C). This is best determined by inserting an oven-safe digital thermometer into the center of the steak and monitoring the temperature.Dried Onion Flakes: Feel free to use 2 teaspoons of onion powder in place of dried onion flakes. Storage: Store leftovers in an airtight container for up to 3 days. Reheat slices in a dry skillet quickly until just warm, or broil unsliced London Broil for 2 minutes per side just to warm through. Grill London Broil: Preheat your grill to medium-high. Remove the meat from the marinade and then grill for 7-8 minutes per side, or until the internal temperature reaches 130-135°F (54-57°C). Remove from grill, rest for 10 minutes, cut, and serve.