I've seen a few recipes for this dish that are not in any way authentic to the Cuban version. Being that this is my absolute favorite dish and I'm a Cuban-American that's been eating this for as long as I can remember, I thought I'd share my version. Here's the recipe that I and most Cuban families here in Miami use. Of course, some people have their own special igredients, but I assure you that cocoa powder, celery, and chioptle chillies are not used in the traditional Cuban recipe. To me, what gives this dish its unique flavor is the dry cooking wine. I use Edmundo, which is found in just about any grocery store. Also, most people use perssure cookers and can have this done in less than 45 minutes. However, I use my trusty cast iron dutch oven and cook it for the full 2 hours. Niehter method makes a noticable difference in taste, it's just a matter of how much time you have. Hope you like it!