This kind of recipe already available on the site, but I am preparing him for many years and you want to publish your own version and to identify some of the subtleties of cooking. I removed the mayonnaise from the original recipe (in my opinion, the extra fat to anything). This dish is brilliant: simple, fast, coupno, exotic, festive and useful! Use that pineapple helps break down protein and partially neutralizes the fats in the meat. And the meat itself is not even necessary to beat, it becomes 30 minutes, soft and juicy, thanks all the same pineapple :)