From your Irish-Jewish Sprudge.com Lead Writer:

1 1/2 ounces Irish whiskey
1 1/2 ounces Irish cream liqueur (optional)
1 teaspoon brown sugar
2 to 4 tablespoons whipped heavy cream

And 1 cup of coffee (how about a blend? Try Stumptown's Holler Mountain Blend or Counter Culture Coffee's #46)

Repeat.