You must use a quart of the clearest, richest broth thickened while hot with a thin paste of corn starch and water. To this add the yolks of at least two eggs which have been creamed with a pat of butter. Then add two more chopped hard boiled eggs (yolks and whites), the cooked and chopped livers and gizzards of the turkey as well as the hen you used for your stock ( a half cup or so of each), but not the meat from the necks, which are superfluous and troublesome. I often add a half cup of chopped, sauteed celery for texture. Salt to taste and season with white pepper. Parsley is pretty, and a smidgen of thyme is a nice accent.