This Mexican stew is perfect party food: it feeds a crowd and the toppings passed around the table add to the festive nature of the dish. It’s traditional to serve the chicken in whole pieces, but you can also pull the cooked chicken off the bone and add the meat back to the stew, as you might for a chili. The chile sauce can be made up to 2 days ahead. Let cool to room temperature, cover, and refrigerate. Reheat gently before proceeding. You can also make the stew start to finish the day before and reheat it just before serving.