I debated with my friend which, - cocoa powder or the chocolate bar - 'arrived' first in Europe (specifically the U.K.) to decide what type of hot chocolate was first made. Any food/chocolate/sweet-hot-beverage historians out there to help us settle this?
There is always more to be said, but this actually comes up in my answer to Why did Switzerland, a landlocked country which never held any colonies let alone one where coco beans grow, become so famous for chocolate?