Mini pineapple upside down cakes. I used this as a presentation idea only, I did not follow the recipe given. I used boxed pineapple cake mix. NOTE: To be able to use the pineapple rings as shown, you must bake in JUMBO muffin tins! If using regular-sized muffin tins, cut pineapple rings into wedges (or just use pineapple chunks or crushed pineapple instead). But the taste is just fabulous any which way! Big Thumbs Up from all my gal-pals!