Thousand Island dressing is a pink salad dressing (a variant of Russian dressing), commonly made of mayonnaise, ketchup, and a mixture of finely chopped vegetables.

It is used both in salads and as a sauce on sandwiches, especially in fast-food restaurants. In many areas of Europe, what is marketed as "American Dressing" is actually Thousand Island Dressing.

Little Story
At the turn of the century, whenever George C. Boldt was not busy managing New York City's Waldorf-Astoria Hotel, he enjoyed vacationing in the 1000 Islands. Many times Oscar (Best known as "Oscar of the Waldorf,"  - he served as maitre d'hotel and official greeter of presidents, dignitaries, and visiting nobility). accompanied Mr. Boldt on his trips to the 1000 Islands and to Mr. Boldt's beloved castle in Alexandria Bay. On one such trip aboard the yacht Louise (named after Mrs. Boldt), Oscar discovered that the noon meal's salad fixings had been left sitting on the dock. Improvising with the ingredients he had aboard the yacht, he concocted the tasty dressing for which the region is now known around the nation and the world. Soon, Mr. Boldt started serving the dressing at his hotels and its popularity quickly soared.

Oscar's fame as a chef (which he was not, although mistakenly thought to be by many) became widespread not only because of 1000 Islands Dressing, but also such other innovative and improbable creations as Waldorf Salad and Veal Oscar.

1. Mix together all ingredients.