We’ve all had powdery hot cocoa—watery, only vaguely chocolaty, and occasionally crunchy with undissolved marshmallow clumps. Still, cocoa was—and is—the best thing to stir into a mug on a winter afternoon.Today’s hot chocolate has come a long way from little packages with gritty marshmallows. From sipping chocolate flavored with secret Caribbean spices to house-roasted cocoa beans and celebrity truffle shops, America’s best hot chocolate has gone gourmet.We’re hardly the first to revere…
