Bobs Grilled Flank Steak and Onions

• 2 lbs flank steaks
• 3 medium onions, sliced 1/2 in thick
• 1 teaspoon olive oil
• 12 cup balsamic vinegar
• 2 teaspoons Dijon mustard
• 12 teaspoon salt
• 1 teaspoon rosemary, crumbled in your hands

1. Prepare grill.
2. Combine olive oil, balsamic vinegar, dijon mustard, salt and rosemary in a 9X13 dish.
3. Add steak and onions; turn to coat.
4. Let stand at least 15 mins or upto 45 minutes.
5. Grill steak and onions 8-12 minutes turning once and brushing with with marinade.
6. Slice steak across grain and serve with onions.

flank steaks, onions, olive oil, balsamic vinegar, mustard, salt, rosemary

Taken from www.food.com/recipe/bobs-grilled-flank-steak-and-onions-92873 (may not work)