Position oven rack to bottom third of oven and place a baking stone or large baking sheet on top; preheat oven (and baking stone/sheet) to 400ºF.
Whisk all ingredients together in a large bowl, then scrape into an unbaked 9" pie shell.
Bake 15 minutes, then reduce to 325ºF and bake 40 minutes more, or until pie is set (it'll still be a bit jiggly, but not loose). The no-fail way to check is to take the internal temperature with a meat thermometer. It should be 175ºF.
Cool on wire rack and serve slightly warm, room temperature, or chilled, topped with whipped cream.
Notes
Here is my no-fail easy pie dough recipe. Store cooled pie (and any leftovers) in the refrigerator.Scroll up to see details on How to Make Pumpkin Pie with Fresh Pumpkin in the article above!