1/2 cup red wine vinegar
1/2 cup soy sauce
2 tablespoons lemon juice
1 tablespoon brown sugar
1 tablespoon Worcestershire sauce
2 cloves garlic
1/4 teaspoon onion powder
2 pounds boneless beef steak
In a shallow bowl, mix together the 1st 7 ingredients.
Add beef and flip to coat.
Cover, place in freezer for 8 hours or overnight.
Combine and discard marinade.
Grill steak, covered, over medium heat in the direction of 8 to 10 minutes on each side, or until beef reaches desired doneness.
Allow to stand for 10 minutes before tenderizing.