If you are using fresh corn. You could remove the corn off the cob and set it to the side, covered and in the refrigerator until you are ready to cook. The entire recipe takes 10 minutes to cook. You could cook it ahead of time without the mayo. Then reheat (Either reheat in the microwave or in a frying pan on the stove top) and mix in the mayonnaise and sprinkle in the cojita cheese.