3 large sweet onions (about 1-3/4 lb.)
Cooking spray
1/4 C. balsamic vinegar
1 T. olive oil
1 tsp. dried thyme
1/2 tsp. dried basil
1/8 tsp. pepper

Preheat oven to 450 degrees. Peel onions, leaving roots intact; cut each onion into 6 wedges. Place onion wedges in an 11 x 7-inch baking dish coated with cooking spray. Combine vinegar and remaining ingredients in a small bowl; pour vinegar mixture over onion wedges, tossing gently to coat. Cover and bake at 450 degrees for 25 minutes. Uncover and bake an additional 45 minutes or until tender.