Grilled London Broil with Zesty Marinade

Score the top and bottom of the meat in a 1.5-inch square pattern, and score the sides as well. Generously sprinkle with unseasoned meat tenderizer, then pierce the meat with a fork, about 1/8 inch apart, pressing halfway through the meat on both sides. Lightly sprinkle with water and rub in the tenderizer. Place on a plate, cover, and set aside for 1 hour.

In a small bowl, combine oil, lemon juice, seasoned salt, lemon pepper, garlic, parsley, and tarragon vinegar. Pour the marinade over the meat, reserving some for brushing later (do not mix the reserved marinade with the meat). Cover the dish and refrigerate for 3 hours, turning the meat every 30 minutes.

Preheat the grill to high heat.

Lightly oil the grill grate and position it 2 inches above the coals. Place the meat on the grill and cook for 5 minutes. Flip the meat, brush with the reserved marinade, and cook for another 5 minutes.