So, what's the deal with the shiny side and the dull side? It all comes down to the way the paper is coated. The shiny side is usually treated with a thin layer of silicone, which helps food release easily - but does that mean it should face up or down?
As it turns out, the shiny side should face down, towards the baking sheet. This allows the food to release easily, and prevents it from sticking to the paper. But don't worry if you've been doing it the other way around - it's not the end of the world!
