Line a baking sheet with foil or parchment paper.

Spread popcorn out on baking sheet, discarding any unpopped kernels.

In a small saucepan, melt pumpkin spice morsels over low, stirring constantly until completely melted.

Drizzle melted pumpkin spice morsels over popcorn.

Next, melt semi-sweet chocolate morsels over low, stirring constantly until completely melted.

Drizzle semi-sweet chocolate morsels over popcorn.

Sprinkle Halloween sprinkles over melted chocolate and popcorn.

Stick the baking sheet in the fridge until the chocolate has completely hardened.

Break bark into pieces to eat, or store in an airtight container in the fridge.