Remove the husk and leaves of the corn
(Optional) Brush the corn with a bit of oil and grill the corn on high heat until brown and charred
Shave the kernels off of the corn cob and place it in a large bowl (See blog post for tip to easily remove the kernels from the cob, with less mess)
Finely chop the green onions and set aside
Crumble up the cotija cheese and add it to the bowl of corn
Cut ¼ of a lime and squeeze the juice into the bowl of corn (add more lime juice if you like a tangier flavour)
Add in the cayenne pepper and mayonnaise and mix well
Set the stove to medium heat and melt the butter in a pan.
Add in the corn mixture and cook for 10-15 minutes
Turn off the heat and add in the green onions and mix together.
Move the corn to an oven safe pan and top with grated mozzarella cheese
Broil for 3-5 minutes or until the cheese has melted at the top and is brown.