What do you need to know about chocolate?
Seriously
Chocolate was introduced to the Spanish Conquistadors by the Aztecs, who promptly repaid their hosts by ripping them off and enslaving them whilst depriving them of their gold and their national pasttime of carving out the hearts of their enemies. Maybe they should have told them about the mushrooms instead...
Notes and Special Information
Special note: Always ask a licensed professional for the best information, if there is such a thing as a chocolate professional, which would be pretty weird.