Balsamic London Broil

• 2 lbs top round london broil beef
• 14 cup onion, chopped
• 13 cup balsamic vinegar
• 2 teaspoons olive oil
• 2 garlic cloves
• 1 teaspoon dried marjoram
• 1 teaspoon Worcestershire sauce

1. Combine onion, vinegar, oil, garlic, marjoram and Worcestershire in a blender or food processor.
2. Blend until smooth.
3. Place meat in a zip-lock bag or a shallow dish.
4. Pierce meat with a fork in several places.
5. Pour sauce over meat, turning to coat.
6. Let marinate in the fridge for at least 8 hours.
7. Preheat grill to medium (300 degrees -350 degrees ).
8. Remove meat from marinade.
9. If you want to use the marinade as a sauce, cook it in a sauce pan until it boils.
10. Place meat on grill, covered, for 7-12 minutes each side for medium rare.
11. Remove and let stand for 3 minutes.
12. Cut across the grain into thin slices and serve.

beef, onion, balsamic vinegar, olive oil, garlic, marjoram, worcestershire sauce

Taken from www.food.com/recipe/balsamic-london-broil-393975 (may not work)