Remove the top as if cutting a jack-o-lantern and remove seeds and string. Remove the little 'button' from the bottom.
Cook bacon till crisp and reserve. Drain and reserve fat from pan leaving only enough to sauté onion until it becomes translucent.
Chop enough dates so that the total mixture barely fills the cavity and add to the pan with the spices. Chop the bacon and return it to the pan. Add stock as needed to loosen the mixture. It must be stiff enough to slice after cooking but this will turn to cement without some liquid.
Fill the cavity with the date mixture and replace the top.
Put into a pan with 1/2 inch of water, cover, and bake for 40 - 60 minutes in a 375° oven. Test for doneness by removing the top and inserting a thin knife through the filling into the bottom of the squash (that way there are no perforations to spoil the presentation)