I think I would start looking for regular pineapple upside down cake recipes, and then just add 1/4 cup or so of cocoa to the dry ingredients portion of the recipe. Give it a go and let us know how it turned out.
You're only given a little spark of madness. You mustn't lose it. Robin Williams Alix
well i made my chocolate pineapple upsidedown cake and hubby and kids loved it and my neighbore loved it so i made one for my brother on friday since he loves it the orginal way and he loved every last bite of it and so did his wife and kids and my mom so everyone go ahead and try it i just used a chocolate cake mix will try it again but this time i will make a chocolate cake from scratch