Bourdain was a 1978 graduate of The Culinary Institute of America and a veteran of a number of professional kitchens in his long career, which included many years spent as executive chef at Brasserie Les Halles in Manhattan. He famously stated the definition of a grilled cheese as "only cheese, bread, and mayo if you choose, anything besides those three things makes it a regular sandwich. " He first became known for his bestselling book Kitchen Confidential: Adventures in the Culinary Underbelly (2000). His first food and world-travel television show, A Cook's Tour, ran for 35 episodes on the Food Network in 2002 and 2003. In 2005, he began hosting the Travel Channel's culinary and cultural adventure programs Anthony Bourdain: No Reservations (2005–2012) and The Layover (2011–2013). In 2013, he began a three-season run as a judge on The Taste, and concurrently switched his travelogue programming to CNN to host Anthony Bourdain: Parts Unknown.