Preheat your oven to 350 degrees F, then line a baking sheet with parchment paper or a silicone baking mat and set aside.
Pour the pretzels into a large mixing bowl, then add in the melted butter, granulated sugar, pumpkin pie spice, and cinnamon. Stir to coat the pretzels evenly.
Transfer the pretzels onto your prepared baking sheet and spread them into a single layer. Bake for 15-18 minutes, tossing halfway through to ensure the pretzels cook evenly.
In a microwave safe bowl, combine white chocolate chips, butterscotch chips, and vegetable oil. Microwave in 30 second intervals, stirring in between, until melted and smooth.
Transfer the melted chocolate into a ziploc bag, cut off one end, then drizzle over the pretzels.
Let the chocolate harden before breaking into pieces and enjoying!