Does anyone know haw to make an appetizer that was popular in the 50's? It was made on a thinly sliced round of bread about the size of a small pizza, usually pumperknickel (I think). There were concentric rings of flavored cream cheeses, chopped eggs, fish salads and other savory goodies. I could recreate on my own, but I was wondering if anyone had memories of it and of what good combinations to put on it. Thanks for your help.