Make sure to sample some hot drinking chocolate in Barcelona. I chose a mug from Cacao Sampaka, a gourmet chocolate shop where you'll find all sorts of delightful dessert concoctions. The rich, velvety drink is nothing like American hot chocolate. It's thick, a bit spicy, and not too sweet. Dunk churros or melindros, a spongy, cake-like cookie traditional to Catalonia.