I actually didn't know this until I wrote this recipe, but I encourage you to click here and read the full story for yourself, it's fascinating! "According to legend, George and Louise were out for a cruise on their steam yacht, and it was time for lunch. Greens were on the menu, but the Boldts' chef forgot to bring any dressing with him onboard. So, he improvised with what was on hand — whipping together mayonnaise, ketchup, pickle relish, Worcestershire sauce and a hard-boiled egg. Voila! Thousand Island dressing was born."