Turkey Curry Soup

(from Mike Gamblin)
3 T butter
1 chopped onion
3 diced carrots
2 diced celery stalks
3 tsp curry powder
3 T flour
6 cup chicken stock
2 diced potatos
1 shredded Granny Smith apple
2 cups shredded turkey breast
2 tsp salt
1/2 tsp pepper
2 cups cooked rice

Heat butter in skillet over moderate heat.
Add onion, carrots, and celery and cook 5 minutes.
Add curry to flour and sprinkle over onion mix, cooking until fragrant and starting to brown.
Add stock and bring to a boil.
Add potatos and apple, reduce heat, and simmer 30 minutes. Stir in turkey, salt, and pepper, and simmer an additional 5 minutes.
Serve over rice in bowls.