A silpat is a flexible cooking sheet made from silicone and glass weave. Nothing sticks to it! You can cook on it, roll out dough, cookies, fondant, etc. It can go straight from the freezer and into the oven. You can use it over and over. Once you get one, you'll want more! Best invention since toilet paper. You cant even cook on toilet paper. You'll see all sorts of silicone cooking mats on the market, but none come even close to a SILPAT. If you buy one and dont like it, then you'll be the first.