Preheat the oven to 350 degrees. Line a baking sheet with a silicon baking mat, parchment paper, or spray with non-stick spray. Set aside.
In a large bowl, whisk together the flour, baking soda, baking powder, cinnamon, pumpkin pie spice, and salt. Set aside.
Using a stand mixer (or electric hand mixer), cream together the butter, white sugar, and brown sugar.
Add 1 cup pumpkin, the egg, and vanilla to the butter/sugar mixture. Beat until the mixture is creamy and combined.
Add in the dry ingredients, a little at a time and mix until just combined.
Using a one tablespoon cookie scoop, place cookie dough on prepared baking sheet, about an inch apart. The batter will be a bit wet, this is normal and the cookies will be fine.
Bake for 10 - 13 minutes or until the bottoms are lightly brown and cookies are baked through.. Remove from oven and let cool 2 minutes on the baking pan before removing to a wire cooling rack to cool.