Preheat your oven to 350 degrees and prepare a 9-inch pie dish by lightly spritzing with non-stick spray.
Place your pie dough on a lightly floured surface and roll out to about a 10” circle. Place in the pie dish and using your index finger on your left and index and thumb on your right hand to flute the top of the pie crust (if desired).
Poke holes in the bottom of the crust using a fork and bake for 7-8 minutes or until golden brown.
Prepare the filling by adding the eggs, vanilla, and sugar into a large bowl and whisking until light and fluffy, about 2 minutes.
Next, add the pureed sweet potato, salt, baking powder, and pumpkin spice. Mix until just combined.
Last, add the heavy whipping cream and beat on high speed for 1-2 minutes.
Pour the filling into the prepared crust and bake for 45-50 minutes. At around 30 minutes check to make sure the crust is not getting too dark, if it is, just tent a piece of aluminum foil over top of the pie and continue baking.
The center should giggle SLIGHTLY (think Jell-o consistency) and the edges should be set when the pie is finished.
Remove from the oven and allow to cool completely on a wire rack. Place in the refrigerator and allow to set for at least 4 hours but overnight is best.
Serve with whipped cream and cinnamon if desired.