Steamed milk + bar of dark chocolate = The Submarino (melt the bar into the milk)

It's such a simple idea that I'm surprised it isn't more popular here. I'm not even a big fan of chocolate (other than the Silk Chocolate Soymilk I'm always carrying around), but since the jaunt through South America, I've been downing cups of milk and chocolate every time it dips below 40 degrees (the last two days were especially filling =D)