I voted for a full shot.. why not!?!? : ) when you think about it a full shot isn't that much in a mug of hot coco. As for the liquor suggestions to pour into... I would strongly suggest AMARULLA -Sooooo good. I describe it as a less alkiholicky tasting baileys, more velvety and chocolately ( a shot of Amarulla and
Vodka on ice... YUM ) and maybe also Creme de Menthe, make it a mint ...