Waldorf salad is a classic American salad that was first created at the Waldorf-Astoria Hotel in New York City. It is made with apples, celery, grapes, and walnuts, dressed with mayonnaise. Waldorf salad is a sweet and crunchy salad that is often served as a side dish or a light lunch. It is a great option for those who enjoy the combination of fruit and nuts in their salads.