Chef Michael Lomonaco, of New York's Porter House Bar and Grill, shares a recipe for classic Waldorf salad, the creation of which is credited to Oscar Tschirky of the original Waldorf Hotel (later the Waldorf-Astoria) in the late 1800s. The salad is quick and easy to prepare, and most of the work can be done ahead of time.
Make the dressing by whisking the mayo, sour cream and lemon juice in a large mixing bowl.2.
Cut the apples into a large (1/2-inch) dice and add to the dressing, tossing well to coat. Add the celery and grapes and combine well.3.
Place lettuce leaves on salad plates and a mound the apples, celery and grapes in the center.4.
Top each salad with some walnuts and serve immediately.
Make-ahead: The dressing can be made ahead of time, the fruit and celery cut in advance and the salad assembled when time to serve.