In a saucepan, saute the apple, onion and celery in butter until crisp-tender. Stir in the flour, curry powder,salt, bouillon and cayenne. Gradually stir in milk until smooth. Bring to a boil; cook 1-2 minutes or until thickened. Stir in turkey and peanuts; cook until turkey is heated through. Serve over rice and garnish with parsley.