I saw them one time made in the large muffin pan without the papers. They sprayed the heck out of the muffin pan, then put in the Pineapple and cherry with the sugar etc. on that, then the batter. Once cooked they put a tray on top and flipped it quickly. I considered trying it but found out I was the only one in my family that really liked Pineapple Upside Down cake. It has always been my favorite since I was a small child.