Marron glacé Marron glacé A marron glacé (plural "marrons glacés") is a confection, originating in southern France and northern Italy consisting of a chestnut candied in sugar syrup and glazed. Marrons glacés are an ingredient in many desserts and are also eaten on their own. Candied chestnuts appeared in chestnut-growing areas in northern Italy and southern France shortly after the crusaders returned to Europe with sugar. Cooking with sugar allowed creation of new confectioneries. A candied chestnut confection was probably served around the beginning of the 15th century in Piedmont, among other places. But "marrons glacés" as such (with the last touch
Joseph Marron Iancu, and Raytheon CEO Thomas Kennedy. The patent has been assigned to Raytheon. Joseph Marron Joseph Charles Marron (born 1959) is an American optical engineer and a principal engineering fellow at Raytheon. He is known for his work in developing advanced laser radar and the invention of holographic laser radar. He is a fellow of the Optical Society of America and in June 2018 was awarded the 10 millionth U.S. patent. Marron was educated at University of Rochester's Institute of Optics. He received his undergraduate degree in 1981 and his PhD in 1986. While working at the Environmental Research Institute