A well-roasted corn kernel is smoky.  Chewy. Juicy. Irresistible. This much, Mexicans know. Some elote are cooked for hours inside clay ovens. They sit over shimmering coals until their bright yellow kernels turn deep, toasty brown and their husks turn brittle.* More simple recipes speed up the roasting process, but have triple-decker toppings: salty cotija cheese, rich mayonnaise (just enough to make the cheese stick), and smoky ancho chili powder. Then the whole cob is sprinkled with cilantro and a good puckering of fresh lime juice. The end result is an ear of corn that is practically a meal in itself. Ultimately, the lime juice is what sold me on elote. Even a single, tart wedge does wonders to bring the richly spiced corn into relief… though I found myself squeezing much more on each cob. One bite satisfies me almost as well as a good margarita does. My version of elote takes extra limes into consideration as well as an interesting technique from America’s Test Kitchen – adding the ancho chili powder before grilling in order to bloom the flavor. …