I wash a sugar pumpkin or two, cut it up and remove the seeds. I put the (unpeeled) pieces in a large pot over a steamer basket and steam it till the pulp is soft. Then the peeling comes right off. I then mash up the pulp and freeze it in 2-cup portions (what my pie recipe calls for). When I want to use it for a pie, I put it I the blender with the other ingredients and blend to smooth out the "fiber". I used to try to blend it before freezing it, but had to add too much water to get the blender work. It is also very good for pumpkin bread.