Fodor's Expert Review Laguna Negra

If you can't get to South America's chocolate capital Bariloche, pop into this chocolate boutique for planks of homemade chocolate and a selection of artisanal beers, chutneys, and spices. In the small coffee shop at the back, drop a glorious slab of dark chocolate into a mug of piping hot milk—one of the best submarinos in town.