Brown chicken in oil. Remove from pan; set aside. Cook onion and celery in same pan until tender, but not brown. Blend in flour and curry powder,then next four ingredients.Cook and stir until boiling. Put chicken in baking dish. Pour sauce over chicken.Bake in oven at 350 degrees for 1 hour. Remove chicken to large platter. Add cream to baking dish; stir in and heat 5 minutes. Do not boil. Serve sauce over chicken, or separately in gravy boat.