how to cook london broil

To cook London broil, start by tenderizing and marinating the beef, which is usually a flank or top round steak, to enhance flavor and tenderness. A typical marinade might include balsamic vinegar, Worcestershire sauce, soy sauce, olive oil, garlic, Dijon mustard, salt, pepper, and herbs like thyme or oregano. Marinate it in the refrigerator for at least 30 minutes, preferably several hours up to 24 hours. Then, prepare for broiling by preheating your oven's broiler on high and positioning the rack about 6-8 inches from the heat source. Remove the beef from the marinade, discard the marinade, and place the steak on a broiler pan or a wire rack set inside a foil-lined baking sheet. Broil the steak for about 7 minutes per side for medium-rare, or 9 minutes for medium, adjusting time for thickness and desired doneness. Use a meat thermometer to check internal temperature: 130°F for medium-rare, 135°F for medium. After cooking, let it rest covered loosely with foil for about 10 minutes, then slice thinly against the grain and serve. Alternatively, London broil can be pan-seared or grilled following similar marinating steps, ensuring the steak is rested before slicing for best results.