Along with Copenhagen, Cape Town and Bordeaux, Mexico City is rapidly earning its stripes as one of the most exciting culinary cities. From the bountiful markets of DF (short for Distrito Federal) to its venerable taco trucks and white-tablecloth gastronomic palaces, there is a culinary renaissance afoot here that has foodie travelers firing on all cylinders. With countless hot new spots mining the country’s rich and diverse culinary heritage, chefs who “studied abroad” at the best international...