Preheat oven to 350 degrees F.
Cream together butter, granulated sugar, and brown sugar until light and fluffy.
Beat in egg, pumpkin puree, and vanilla extract until smooth.
Whisk gluten-free flour, baking soda, baking powder, and pumpkin spice in a separate bowl.
Gradually add dry ingredients to wet, mixing until just combined. Stir in chocolate chips.
Drop 1-1/2 tablespoon-sized mounds onto parchment-lined baking sheets.
Bake for 14-16 minutes, until edges are lightly golden.
Cool on baking sheets for a few minutes, then transfer to a wire rack.