Step 1

In a small bowl, mix mayonnaise and butter until fully combined

Step 2

Assembly sandwiches by spreading the butter-mayo mixture on one side of each piece of bread

Step 3

On the inside of the bread add 1/2 cup of grated cheese and top with second piece of bread that is prepared with the same butter/mayo combo

Step 4

Add prepared sandwich to a cold cast iron skillet and turn heat on to low

Step 5

Carefully watch to make sure that you aren’t burning the butter-mayo, flip as soon as one side is golden brown and continue with other side

Step 6

This process should take 8-10 min on each side

Step 7

Do not rush this process or you will compromise the crispy golden crust of a perfect grilled cheese.Once both sides are golden brown, transfer to a plate and serve!