Brown turkey in butter in a large frying pan.
Add garlic, onion, celery, and carrots.
Saute until onions are soft.
Stir in broth, wine, seasoned salt, and pepper.
Bring to a boil, reduce heat, cover, and simmer for about 2 hours or until turkey is very tender.
Remove turkey and vegetables to a warm serving dish with a slotted spoon.
Stir a little pan liquid into flour to make a smooth paste.
Over high heat, quickly reduce sauce in pan by about 1/3 blend in flour mixture and cook, stirring constantly, until thickened.
Pour sauce over turkey and vegetables.