Waldorf salad is a classic salad that was created in the United States. It is made with crisp apples, celery, grapes, and walnuts, dressed in a creamy mayonnaise-based dressing. The salad is often served on a bed of lettuce or in a sandwich. Waldorf salad is a perfect combination of sweet and savory flavors, with the crunchy apples, refreshing celery, juicy grapes, and nutty walnuts. It is a popular choice for picnics, potlucks, and brunches.