Here's what you'll need. I used muenster cheese but cheddar works better I think..sharper the better so it clashes with the apple.
Honey mustard sauce = 1 tablespoon honey + 1 tablespoon Mustard
Add your cheese to one slice of bread.
Spread your honey mustard mix on the other slice
Add your apple
Pile your turkey high
Close the sandwich and butter one side
Heat a skillet/pan to medium high heat.
Slap your sandwich down (butter side down), and then butter the other side. You should put the sandwich on early so the cheese has time to melt before the bread gets too dark
Flip after 2-3 mins.
Let it cook on the other side for 2-3 minutes, reduce heat if cheese isn't melted in time.
Serve with the leftover apple.