• In a small bowl or measuring cup, whisk together the 1/2 cup light soy sauce, 1/2 cup extra virgin olive oil or other neutral oil, 1/3 cup water, 1/4 cup Worcestershire sauce, 1/4 cup light brown sugar, minced or grated 4-5 cloves fresh garlic, zested and juiced 1 fresh lemon, 1 tablespoon dijon mustard, 1 teaspoon ground black pepper, 1/2 teaspoon coarse kosher salt and 1/4 teaspoon crushed red pepper flakes.
• Pour the marinade over the London broil in an airtight plastic bag or shallow marinating dish. Seal or cover and chill for a minimum of 4 hours, but preferably overnight.
• When ready to cook, remove the beef from the marinade, discarding any additional.

How to Grill London Broil:

• Preheat the grill to medium high heat (approximately 400°F). Oil the grates.
• Grill for 5-6 minutes per side over direct heat or until it reaches your desired level of doneness using an instant digital thermometer. Medium-rare is ideal for a London Broil at 135°F.

How to Broil London Broil:

• Preheat the broiler and line a rimmed baking sheet with aluminum foil or use a broiler pan. Place the London broil in the center.
• Place the pan 5-6 inches from the heating element and cook for 4 minutes on each side, watching closely to make sure it doesn't not start to burn. If it does, move it further from the heating element.
• Remove when it is your desired doneness. Allow the cut to rest for at least 10 minutes before slicing thinly against the grain.

Pan Sear (Stovetop) Method:

• Preheat a cast iron pan over medium-heat. Add 1-2 teaspoons of a neutral oil with a high smoke point, such as vegetable or canola oil.
• Sear on both sides for 5-6 minutes or until your desired level of doneness.
• Allow the cut to rest for at least 10 minutes before slicing thinly against the grain.
• If you've tried this recipe, come back and let is know how it was in the comments or star ratings.