This is a national dish of Mexico, which is prepared for special occasions for large parties of people and is timely and costly to prepare. It is usually made from turkey and feeds 10-12 people but in this recipe I use a chicken which serves 4-6 people and is far more available than whole turkeys at this time of the year. But keep it as a stand by for Thanks Giving or Christmas for something different. You will need a selection of dried chillies for this recipe.