I guess I need another post. I am looking for a recipe for the ubiquitous thin sliced potato salad of years ago, in virtually all New York city area delicatessens. I don't think it was made with mayonnaise. There were no eggs, no celery, no pickles, just potatoes, sprinkled with chopped parsley. I think there must have been a trace of sugar, and certainly vinegar.. Some oil, as well HELP, I do miss it so much.