Italian Barbecued Steak

• 12 cup olive oil
• 14 cup red wine vinegar
• 2 tablespoons balsamic vinegar
• 4 cloves garlic, minced
• 14 cup diced onion
• 2 tablespoons chopped fresh rosemary
• salt and black pepper
• 3 lbs sirloin steaks (1 1/2" thick)

1. Mix together all ingredients in a plastic bag and add steak.
2. Refrigerate and marinate for 4 to 8 hours, flipping the steaks occasionally.
3. Remove steaks from refrigerator 30 minutes before grilling.
4. Drain and discard marinade from steaks.
5. Grill over medium heat until steaks reach your desired doneness.
6. Remove from grill and let rest for 10 minutes before slicing and serving.

olive oil, red wine vinegar, balsamic vinegar, garlic, onion, fresh rosemary, salt, sirloin

Taken from www.food.com/recipe/italian-barbecued-steak-69839 (may not work)