Food Network features two simple and easy-to-follow recipes for London broil. Sara Moulton's recipe uses a grill, while Food Network Magazine's recipe calls for cooking in a skillet over high heat.
To make Sara Moulton's recipe, combine 4 minced large garlic cloves, 4 tablespoon balsamic vinegar, 4 tablespoons fresh lemon juice, 3 tablespoons Dijon mustard, 1 1/2 tablespoons Worcestershire sauce, 1 tablespoon soy sauce, 1 teaspoon dried oregano, 1 teaspoon dried basil, 1 teaspoon dried thyme, 1/2 teaspoon dried hot pepper flakes and 2/3 cup olive oil. Place a 2- to 2 1/2-pound London broil in a resealable plastic bag, and pour the marinade into it. Marinate for eight hours. Remove the meat, and pat it dry. Preheat a grill, and grill the meat for nine to 10 minutes on each side.
To make Food Network Magazine's recipe, dissolve 1 beef bouillon cube in 3/4 cup hot water. Add in 2 tablespoons oil, 1 tablespoon soy sauce, 1 tablespoon Worcestershire sauce, 2 tablespoons fresh lemon juice, 1 teaspoon salt and 1/2 teaspoon pepper. Put a 2-pound top-round London broil into a resealable bag along with the marinade. To make the herb butter, combine 4 tablespoons butter, 1 1/2 tablespoons chopped chives, 1 tablespoon chopped fresh parsley, 1 tablespoon chopped tarragon, salt, pepper and 1 tablespoon lemon juice. Pat the meat dry, and heat a skillet over high heat. Rub the meat with 1 tablespoon olive oil, and sear for seven minutes. Turn, and cook for another five minutes. Top with the herb butter before serving.