Because of his association with the restaurant, he capitalized on his association with food, although he had never worked as a chef. He published a large cookbook. He is also pictured on a relish bottle displayed in the lobby of the Waldorf-Astoria, along with other photos of him at the major events during his tenure as maître d'hôtel. He is credited with having created the Waldorf salad, and for aiding in the popularization of the Thousand Island dressing. Tschirky is also credited with developing the preparation of Eggs Benedict, although differing accounts make this hard to confirm.
Tschirky had a farm in New Paltz, New York, where he hosted picnics for friends and family as well as other chefs. In later years the property was purchased by the Philantropique Society and was operated as a retirement home for chefs. It later opened to the general public and was known as The Culinarians' Home.