All I used was parmesan cheese, a silpat mat (on a baking sheet), and an oven (preheated to 375 degrees).
I started by grating some parmesan cheese - 6 tablespoons per batch. Pre-grated cheese will still work (not the stuff in the green can made by Kraft but the stuff from the cheese section of your grocery store) but it's more economical to buy a block and grate it yourself.
And here's the lovely Silpat. It's made from silicone and it's awesome because look - I'm using it to bake some cheese. Can you even imagine doing that straight on a naked cookie sheet?