Marron glacé that a "marron glacé" is a confit marron that is covered in caramel. The 1767 book "L'agronome, ou dictionnaire portatif du cultivateur" claimed that the best marrons came from the Dauphiné region in southeastern France, and contained instructions for preparing marron glacés. Chestnuts are covered with a membrane, known as a pellicle or episperm, which closely adheres to the fruit's flesh and must be removed because of its astringency. Marron nuts have a pellicle which is "superficially attached to the nut", making it easily removable from the fruit. Some chestnuts have two cotyledons usually separated with deep grooves penetrating nearly
Donald Marron such as city planning, criminal justice and environmental health. In 2012, Marron and Memorial Sloan Kettering Cancer Center established the Donald B. and Catherine C. Marron Cancer Metabolism Center to promote intensive studies focused on tumor metabolism. A key aspect of the Center is the Cell Metabolism Laboratory, which is a state-of-the-art facility that helps investigators characterize biological systems through direct measurement of the small molecule constituents. Marron is married to Catherine "Catie" C. Marron, whose career has encompassed investment banking, magazine journalism, and public service. Mrs. Marron is currently Chairman of the Board of Directors of the Friends of