The spelling, with or without intermediate -n, is a matter of discussion. According to the 2005 Groene Boekje, which reflects the official spelling norm, pannenkoek is correct, while the 2006 Witte Boekje, which is a private spelling norm, allows both. See "Pannekoek of pannenkoek?". Genootschap Onze Taal. Retrieved 12 January 2011.