Can someone please point me in the right direction of clothing, food, what kind of dishes were used for eating/cooking?
There is a book by Henryk Sienkieiwcz "Krzyzacy". And English translation is available as "Teutonic Knights". The book is fact based fiction and contains a lot of information on customs of the times. The action of the book takes place in 1409-1410 and is culminated with one of the greatest battles of Europe - The Battle of Grunwald.
A movie (the same title) was based on the book, and while it is not a documentary, the costumes were designed based on mundane historical research. The book itself is also a faithful reflection of the customs of the times.
Other sources that may be used are Polish works of art of the period. They too squeeze in some information on the every day life. These are easy to get but I am unaware of English translations.
There are more academic works on the subject but, again, monographies are usually in Polish.