I did a stint as the Viking Chef at an SCA demo this weekend.  Pretty fun.  Lots of people wandered by asking questions and trying the snacks.  It wasn't quite as organized as I had thought it was going to be, so I skipped the "they didn't have recipes" spiel and just answered questions.  My contributions to the snacky bits were some "Viking porridge" which consisted of bacon, onions, apples, and oatmeal, and some barley cakes (just barley flour, salt, milk and eggs) with strawberry jam.  The porridge was better-received than I would have thought, although several people reflexively recoiled as soon as they hear oatmeal and onions in the same sentence.  

My son, on the other hand, came back for seconds.