"The following recipes are taken from an old Roman cookbook: MARCUS GAVIUS APICIUS: DE RE COQUINARIA
The book I have is edited and translated from Latin by Robert Maier. My humble person only translated the German translations into English. I hope the recipes are still rather near to the originals...."
http://www.cs.cmu.edu/~mjw/recipes/ethnic/historical/ant-rom-coll.html
The Virtual Typewriter Museum
http://www.typewritermuseum.org/collection/index.php3?machine=barl6&cat=kd
ETA: Apparently, you can buy this in book form, but I can only find a German version. Thanks for the head's up,
http://www.amazon.de/Apicius-Mardus-Gavius-coquinaria-3-15-008710-4/dp/B0057IQYU0/ref=sr_1_40?ie=UTF8&qid=1310941301&sr=8-40
ETA2: Even more historical cooking:
http://www.thousandeggs.com/cookbooks.html
as well as 'Feeding America: Historical American Cookbook Project.': http://digital.lib.msu.edu/projects/cookbooks/html/browse.html
From
Any further links added i'll just say - check out the comments in this post! :)