Digitally released by the JFK Presidential Library 2/11/14. I found it on this BBC article: http://www.bbc.co.uk/news/blogs-magazine-monitor-26160596 It is also posted on the JFC Presidential Library Facebook page 2/11/14: https://www.facebook.com/JFKLibrary It is interesting to see Mary Hemingway's special instructions scribbled in the margins. The original recipe specified Spice Island Mei Yen Powder which is no longer available so I have replaced that with the components of salt, sugar and MSG. These are whopping 8 oz burgers....I might make them smaller. If you do, adjust the cooking time.