You need, Mustard, Mayo and pickle relish. I don't remember ever making it up with a recipe, it was just throw everything together and make it up until it tasted right. We would serve a thick layer of this on the bottom of the bun, a sprinkling of shredded lettuce, and then the meat. We made a mean bacon cheeseburger! Then top with the other half of the bun. No ketchup, just this famous hamburger sauce!