If you're interested in medieval cooking, here's something new and exciting for you: Prospect Books is publishing "Zinziber: Sauces from Poitou. Twelfth century culinary recipes from Sidney Sussex College, Cambridge, MS 51".
The book is featuring recipes found on a single sheet contained within a manuscript with medical recipes, and it dates to the middle of the 12th century. This makes is a very, very early document about medieval food and cooking.
The book contains a transcript and translation of the recipes plus an attempt to recreate the dishes, a discussion of culinary traditions and flavourings, and modern recipes to try yourself... and it definitely sounds very, very interesting.