Back where I lived in eastern Washington, there was a small local burger chain that had great food. They had the best fry sauce ever and this is my souped up version that I started selling on my hotel bar menu. While some folks think the secret ingredient is vinegar, they are only half right. Pickle juice is the real secret. If you think about what goes on a burger, then drips on to your fries and tastes so darn good, it makes more sense then plain old vinegar. But I felt if I was gonna put it on a bar menu, I needed to make it my own. Oh, please, what ever you do, use mayo, not miracle whip. Besides the fact that miracle whip is a crime against humanity, and just plain nasty, the end product wont be the same.