Place chicken on a board, and cut in long, thin strips, and cut these into dice. Place in an earthen bowl (there should be two quarts), and season with vinegar, oil, salt and pepper. Set away in a cold place for two or three hours.
Scrape and wash enough of the tender white celery to make one quart. Cut this, with a sharp knife, in pieces about half an inch thick. Put these in the ice chest until serving time.
Make the mayonnaise dressing. Mix the chicken and celery together, and add half of the dressing. Arrange in a salad bowl or on a flat dish, and pour the remainder of the dressing over it. Garnish with white celery leaves. Or, have a jelly border, and arrange the salad in this.
Half celery and half lettuce is often used for chicken salad.
Many people, when preparing for a large company, use turkey instead of chicken, there being so much more meat in the same number of pounds of the raw material; but the salad is not nearly so nice as with chicken.
If, when the chicken or fowl is cooked, it is allowed to cool in the water in which it is boiled, it will be juicier and tenderer than if taken from the water as soon as done.