Put the milk into a saucepan and break the chocolate into pieces and add to the milk along with a cinnamon stick, honey, and sugar and heat gently until the chocolate is melted.
Add the vanilla and mix with a small hand whisk and still whisking, add a spoonful of the rum first and taste to see if you want more. Add more sugar if you want this sweeter, too. Take out the cinnamon stick and pour into 2 cappuccino or caffe latte cups.
Recipe courtesy of Nigella Lawson(Copyright 2004, Feast, Hyperion, All Rights Reserved)