Preheat the oven to 425ºF.
Roll the pie dough out (on a lightly floured work surface) to about 2-inches wider than the diameter of your pie dish.
Line the pie dish with the dough, trim off any excess overhang, and crimp the edge.
Layer a sheet of parchment or foil inside the unbaked crust and fill with pie weights or dry beans (or rice) to prevent it from puffing up as it par-bakes.
Bake the crust until the bottom is just starting to brown (approx. 15 minutes).
In a large mixing bowl, whisk together the pumpkin puree, brown sugar, eggs, pumpkin pie spice, vanilla, and salt until combined.
Pour the pumpkin pie filling into the par-baked crust.
Bake for 15 minutes at 425 degrees F, then reduce the temperature to 350 degrees F and continue to bake until set around the edges but still wobbly towards the center.**
Cool completely for at least 4 hours before garnishing, slicing, and serving.
For the optional candied pecans: Preheat the oven to 250ºF and line a baking sheet with parchment paper.
Place the pecan halves and egg white in a medium bowl and stir to coat.
Add the brown sugar, zest, spices, and salt, and toss to coat.
Spread the pecans onto the prepared baking sheet in a single layer and bake until fragrant (approx. 50-60 minutes). The nuts will become crisp as they cool.