Prepare grill to medium-high heat; grease with oil. Stick each corn cob on skewer. Grill corn until tender and charred on all sides, about 7 minutes.
Place crumbled cheese on medium, flat plate. Working with one corn cob at a time, sprinkle cob with adobo, spread with mayonnaise, roll in cheese and sprinkle chili powder. Place corn on serving plate; repeat with remaining cobs and ingredients.
In this Mexican Corn on the Cob recipe, the skewer stuck into the base of the cob makes for a pretty presentation and a convenient hand-held side dish that’s perfect for summer-time barbeques. But if you only have canned or frozen corn, separated into kernels, you can still enjoy the classic flavors. Simply heat 3 cups of corn according to package directions, place in a bowl and mix with remaining ingredients, omitting the oil, until combined.