First get your frying pan out and put it on the stove...DO NOT START THE STOVE YET KEEP IT TURNED OFF!!
And put two pieces of bread on it. Then spread butter like so on them
Put that bread in the micro-wave FOR 10 SECONDS! It will seem soggy when you take it out but once you cook it it'll be crisp! Btw the reason for doing this is to melt the butter
Once done take it out and spread the butter on the bread with a butter knife
Flip over your bread so that you're putting everything on the NON BUTTERY SIDE! Squirt some mustard as seen above on one piece of bread (mustard can be brown or yellow, but I prefer yellow)
Then add two pieces of cheese on both pieces of bread
Add about ONE piece of turkey. You want enough to taste but little enough that it won't take forever to cook
Put your sandwich in the pan and keep it cooking CONSISTENTLY between MEDIUM AND LOW! Do not change the heat because it's taking awhile to cook...this is necessary to melt the cheese thoroughly
When the first side is cooked, flip it over to cook the other side. DO NOT CHANGE THE HEAT!
When finished turn off stove and cut as you please
Notice how the cheese is perfectly melted! Eat&Enjoy the best grilled cheese ever!:)