1. Melt chocolate in the top pan of a double broiler over hot water. Stir in the cream slowly. Heat until the cream is hot stirring constantly. Add the cinnamon and serve in mugs topped with whipped cream.
For mint flavoured chocolate, add a candy cane to each cup before pouring in the hot chocolate.
For a less rich drink, use half and half cream, or plain milk in place of the heavy cream.