I have done a bunch of them and I boil them. I have a stiff nylon brush and I will pull the head out of the water and brush the meat off. Soak it afterwards in peroxide to whiten the skull. When I boil the skull I pour in baking soda. This helps a little with the stink and helps dry out the skull when finished. Don't pour too much baking soda in at first or you will see what I did, a huge foam pile on the kitchen floor. If you do it before the meat begins to rot it smells like venison stew cooking. Good luck