Preheat the grill to high heat. While the grill heats up, shuck your ears of corn. Then, reduce the heat to low, clean the grill grates, and spray with non-stick cooking spray.
Place the corn on the grill and cook for 15-20 minutes. Turning every 5 minutes or so to prevent burning. You'll notice that the color of the corn will start to turn a deeper shade of yellow (if you are cooking yellow corn).
Once the corn is cooked, remove from the grill and place on a tray. Pour the Mexican Crema over the ears of corn. Then, sprinkle on the cotija cheese (*or place in a dish and roll the cotija on the corn). Sprinkle cayenne pepper (or chili powder for a less spicy version) on the corn on the cob.
Lastly, sprinkle a little fresh minced cilantro on to the corn. Serve each corn on the cob with a wedge of lime to be squeezed on top of the corn. Enjoy immediately!