Do use parchment paper to bake a pineapple upside cake?

Yes, parchment paper is commonly used when baking a pineapple upside cake because it helps to prevent sticking and provides an even bake. You grease the pan and use parchment paper as well. When you're ready to invert it, the entire contents of the pan — cake, sauce, and candied pineapple — invert cleanly onto a plate.