I'm from the Northwest (Idaho) and whenever I ask restaurants for fry sauce, I usually get a really odd look. Is it really that uncommon? It's a mixture of mayonnaise and ketchup with some extra spices......preferably none though. I know they have this stuff in Puerto Rico except they just call it "mayo-ketchup". From what I have heard, Utah likes to lay claim to the origins but as far as I am concerned, it's an Idaho product. I hate mayo but when you mix it with ketchup, its amazing. Anyone else ever had it? Anyone else know it by a different name?