To prep your pumpkins cooking them in the slow cooker is the easiest and best way to cook them. You can find full pumpkin cooking instructions here, at How to Cook a Pumpkin. You can do this a few days in advance if you need to.

Preheat the oven to 350 degrees. Bake your prepared pie crust for 12 minutes.

While the crust is cooking make your filling. Add your pumpkin puree (about 4 cups) to the bowl of your food processor. Process until smooth. Add the rest of the ingredient and process to combine well, about 1 minute, scraping down the sides as needed.

When the pie crust has cooked for 12 minutes, remove it from the oven. Carefully pour in the filling, return the pie to the oven, and bake for an additional hour. Remove the pie from the oven and allow to cool on a rack for 30 minutes.

Serve at room temperature or cold with fresh whipped cream.