Arrange chicken in shallow baking pan, breast side up, not overlapping. Sprinkle with onion and seasonings. Blend flour with half c orange juice, stir in the remaining juice and pour over the chicken. Bake, uncovered, basting occasionally at 180ºC for 1 hr. or until tender. Serve the chicken over noodles or rice on a warm platter. Stir the pan juices to blend and pour over the chicken.