Created in the 1940s to warm up weary travelers, this classic cocktail remains a worldwide favorite for good reason. Hot, robust coffee meets a warming spike of Irish whiskey, all sweetened just enough to balance the bite. The real magic happens at the top, where a thick collar of freshly shaken heavy cream floats gently over the dark brew. It's the ultimate after-dinner drink that'll thaw you out on the chilliest of evenings.