Preheat your oven to 350°F. Line two baking sheets with parchment paper.
Whisk Dry Ingredients
In a medium bowl, whisk together: flour, baking powder, baking soda, salt, and pumpkin spice. Set aside.
Cream Butter + Sugars
In a large bowl, beat together the butter, granulated sugar, and brown sugar until light and fluffy (about 2 minutes).
Add Pumpkin + Egg
Mix in the egg, pumpkin puree, and vanilla until fully combined. Batter will look a little fluffy.
Combine Wet & Dry
Add the dry ingredients to the wet and mix until just combined. Do not over-mix.
Fold in the Chips
Stir in both the butterscotch and chocolate chips.
Scoop & Bake
Scoop rounded tablespoons of dough onto baking sheets, leaving a bit of space.
Bake for 12–14 minutes, until the tops look set (they won’t brown much).
Cool
Let cookies cool on the sheet for 5 minutes, then move to a rack.