Any good recommendations for recipes to check out? Preferably a big list? :)
Presumably, the person altering the recipe knew what the old version tasted like, so while it won't necessarily be authentic, I think it's probably better than the wild guesses made during translation of actual ancient recipes.
We have absolutely no problem translating the original recipes, which are in Latin. The only ambiguity is in ingredient quantities and cooking times, but any competent cook is able to figure those out.