Went to see District 9 with some friends tonight (very good movie BTW) and afterward we went out for Vietnamese food. I had a Vietnamese coffee for the first time. I'm not much of a coffee drinker, but this rocked. Basically, it is very potent espresso coffee that drips into a glass with condensed milk in the bottom. After it is done dripping you stir it up and pour it into a glass of ice ( or you can just stir and drink it if you want it hot.) It is very potent, but really good.
Here is how to make it
http://www.ineedcoffee.com/04/vietnamese/