Thinly spread butter on one side of each piece of bread, don't use all the butter

Then on the other side of the bread slices, spread pizza sauce

Put remaining butter in a saucepan on medium heat, lay one slice of bread butter side down

Then quickly lay 2 slices of cheese down, pepperoni's, then the other 2 slices and the other piece of bread, butter side up

Cover pan and let cook for 3 minutes on each side, enjoy!