Waldorf Astoria Chef John Doherty, left, works with Hotel School students, from left to right, Lynn Kim, Jayson Hayn and Alexa Cardile during Doherty's Guest Chef Series visit on March 2. Chefs from the Restaurant Du Moulin de Mugins in France and the School for American Chefs-Beringer Vineyards will visit Cornell March 31 and April 14, respectively.