Buy corn in the husk and remove just the outermost leaves. Carefully peel back the remaining leaves and remove the silk. Drizzle olive oil over the corn. Sprinkle salt and chipotle powder on the corn. Rub the mixture over the corn to coat evenly. Put the husks back over the corn and grill for a total of about 5 minutes, rotating every minute or so.
The husks will retain the moisture and flavor and help cook the corn faster.