Preheat oven to 325° F
Place popped popcorn on a parchment paper lined baking sheet in a single layer.
In a small bowl, blend together olive oil, pumpkin pie spice, sugar and 1/4 teaspoon kosher salt.
Once blended, drizzle over popcorn until evenly dispersed. Stir the popcorn around on the baking sheet until popcorn is coated.
Bake for 8-10 minutes, stopping to stir at the 5 minute mark.
Remove from the oven, and if desired, finish with up to 1/4 teaspoon Kosher salt sprinkled over the completed popcorn.
Serve and enjoy!