My coworker brought this for a pot luck and it was gone in minutes. It's absolutely fantastic. When I make it, I use 4oz of softened cream cheese in addition to the mayo, and I grate a shallot instead of the onion. Gives it a nice, mild flavor. I've had countless people ask me for the recipe and am so glad that people love it as much as we do!
I have been looking for this recipe. It is an old fashioned recipe but it is a keeper.