Start by preparing the marinade. In a large gallon-sized bag, combine ⅓ cup soy sauce, ⅓ cup lemon juice, ½ cup olive oil, ¼ cup Worcestershire sauce, 1 tablespoon minced garlic, 2 tablespoons Italian seasoning, 1 teaspoon pepper, and ½ teaspoon salt. Be sure to mix it well, allowing the flavors to blend.
Once your marinade is ready, add the 2 pounds London broil round steak to the bag. Seal it tightly and gently massage the marinade into the meat, ensuring every inch is covered. Let it marinate in the refrigerator for a minimum of 3 hours; for even better flavor, consider leaving it overnight.
When you're ready to cook, preheat your broiler to HIGH heat. This step is crucial as it allows the steak to get that beautiful char while keeping it juicy inside.
After the broiler is preheated, remove the steak from the marinade. Discard the marinade; you won’t need it again. Place the marinated London broil in a baking dish, ensuring it's spread out for even cooking.
Broil the steak for 5 to 6 minutes on the first side. Keep an eye on it, as broilers can vary in intensity. You’re looking for a nice crust to form.
Once the first side has charred beautifully, flip the steak over. Broil for an additional 3 to 4 minutes, or until it reaches an internal temperature of 135°F for medium-rare. You can adjust the time if you prefer it more done.
After broiling, remove the steak from the oven and let it rest for 10 minutes. This resting period is essential, as it allows the juices to redistribute throughout the meat, making each slice juicy.
Once rested, slice the steak against the grain. This technique ensures each bite is tender and easy to chew. Serve immediately and enjoy the fruits of your labor!