This probably came from a book titled _A Fifteenth Century Cookry Boke_ ((c) 1962 compiled by John L. Anderson and published by Charles Scribner's Sons, NY NY) which in turn was taken from one of the following manuscripts: Harleian MSS 279 (about 1430 A.D.) or 4010 (about 1450 A.D.), in the British Museum, or Ashmole MS 1429, Laud MS 553 or DouceMS 55 (about 1450 A.D.), in the Bodleian Library.