Grilled Steak with Caramelized Onions

Steak...its what for dinner!  Try this simple grilled steak with caramelized onions.  Yes, you can caramelize onions without oil.  Serve with steamed broccoli or grilled asparagus for a classic dinner combination.

Ingredients:

2 large onions, thinly sliced

1-2 garlic cloves

1 pound rib eye steaks or other cut of choice, about ¾ inch thick

3 ½ tablespoons balsamic vinegar, divided

2-3 fresh thyme stalks (or rosemary if you prefer)

Sea salt and freshly crushed black pepper to taste