Here's Martha Stewart's delicious recipe which uses real whipping cream & you should; otherwise, you'll start making "skinny" Irish coffees. If you don't have cream in the house but want to make this tonight, maybe you have vanilla ice cream. It works. Here's another good Irish coffee recipe using brown sugar from a local-to-us chef. (More hot drink recipes from Saveur)
PS: Happy last night of Hanukkah! Happy 4th day of Christmas!
(photograph via Martha Stewart)