Preheat oven to 425 °F
Cut the pumpkin in 1/2, remove the pulp and seeds, anyplace cut side down on a parchment-lined baking sheet.
Bake pumpkin until fork tender, about 30 minutes. After cooling for a few minutes, scoop out pulp from rind. You also may be able to peel the skin from the pulp. Reduce oven to 300 °F for pecan roasting,
Place pice crust in a deep dish pie pan. St in fridge.
Spread pecans out on a baking sheet covered in parchment paper. Bake for 10 minutes, remove from oven and stir, and place back in oven for another 10 minutes. After removing, set oven back to 425. Let cool. Finely chop.
In a medium bowl, stir together brown sugar and melted butter. Stir in pecans.
In a large bowl, beat together the pumpkin pulp, eggs, cream, maple syrup, butter, and spices.
Spread the pecan mixture on the bottom of the pie crust. Pour the pumpkin filling on top.
Bake at 425 degrees for 15 minutes on the bottom rack. Reduce temp to 350, place pie on middle rack and bake for additional 35-45 minutes. Pie is ready when reaches an internal temp of 170 degrees or is slightly jiggly in the center but firm around edges.Cool to room temp and then chill in fridge for up to 3 days.