What's do folks here think is the best material to cook in? I'm leaning towards hammered copper, for the traditional aspect of it.

Cool, thanks. I think I'm going to spend some money and get a full copper set and one of those lodge cast iron pans, so I can get going on some trad cookery.

https://www.amazon.com/gp/aw/d/1606061097/ref=mp_s_a_1_3?ie=UTF8&qid=1514897274&sr=8-3&pi=AC_SX236_SY340_QL65&keywords=european+cookbook&dpPl=1&dpID=61%2BIpRLFvDL&ref=plSrch

Looks pretty good.