Roast Turkey Breast with Balsamic Caramelized Onions and Glazed Dried Cranberries - Michigan Onion

Ingredients

• 1 7 pound whole turkey breast or 2 half-breasts (about 3-1/2 pounds each)
• 7 tablespoons balsamic vinegar (divided)
• 4 teaspoons rosemary, crushed (divided)
• 4 teaspoons thyme, crushed (divided)
• 1-1/2 teaspoons salt
• 3/4 teaspoon ground black pepper
• 6 medium yellow onions (about 3 pounds)
• 2 tablespoons olive oil
• Glazed Dried Cranberries (recipe follows)
• Parsley or other fresh herbs (optional)