On a cold night, my family loves it when I make hot chocolate. And the best one is my El Submarino. The recipe comes from Argentina, and it is easy to make and really good. It is a cup of hot milk, with a piece of chocolate that comes on the side. You put the chocolate into the hot milk and as you stir it, you get a rich hot cup of hot chocolate. The best part is the chocolate that waits for you on the bottom of your cup.