Originally Posted by Owlchick

Chopped Russet potatoes and hard boiled eggs; finely chopped onion, celery, carrot and black olives (these were all very finely chopped); some mayonaise (only Best Foods); salt and pepper.

I don't recall that she added anything else, and the most important bit was that all the vegetables were extremely fine. You could see them and know what they were, but they were quite tiny pieces.