A recipe from Nicaragua that I found at http://recipes.wuzzle.org/. I have not tried it yet but it sounds interesting. It calls for sour orange juice which would be found in a bigger store where the exotic produce is or in the ethnic section in a bottle. The technique is a bit different in that you do not braise it long, and it has handy ingredients. Serve with tortillas and probably a spicy side dish or with a spicy topping.