Saute in a skillet your onion and celery in the butter. You want them nice and soft.
In a large mixing bowl pour in your stuffing mix and add the cooked vegetables. Add in your raisins, oranges, nuts and sage. Moisten it with the broth or warm milk. (My grandmother always poured milk in the skillet she did the onions in along with a full stick of butter to melt, then she poured that over her stuffing. Feel free to do this if you wish, and let me say it is very good!!!)