How do I serve a large amount of hot chocolate?!
Use a coffee airpot or caraffes with lids.
A coffee pot with the hot choc inside, Bottle of Kahlua sitting next to it so poeple can add if they want.
use a crock pot
cider either cold or hot kicked up a bit or just add cinnamon sticks and put it in a crock pot
you could use large pots to make it and then put it in a gatorade jug or a crockpot