Preheat oven to 325°. In a small bowl, combine 5 tablespoons butter, minced garlic, poultry seasoning and minced rosemary and thyme. With fingers, carefully loosen skin from the turkey breast; rub butter mixture under the skin. Rub remaining butter over skin of turkey. Sprinkle salt and pepper over turkey and inside cavity.

Place two onions, garlic cloves and rosemary and thyme sprigs inside the cavity. Place turkey on a rack in a large shallow roasting pan. Pour broth and wine into pan. Add celery, carrots and remaining onion.