Preheat oven to 375 degrees F. Line a baking sheet with parchment paper or a silicone baking mat.
In a large bowl sift together the flour, baking soda, baking powder, salt and pumpkin pie spice.
In a separate bowl whisk together the pumpkin puree, vegetable oil, sugar, brown sugar, egg and vanilla extract.
Combine the wet ingredients with the dry ingredients and whisk until no more flour is present and batter is thick and sticky. Fold in the chocolate chips.
Drop about 2 tbsps of batter onto the prepared baking sheet at least 2 inches apart. Bake for 12 to 15 minutes, or until a toothpick inserted in the center comes out clean. (thicker cookies will take a little longer to bake than smaller ones).
Let cool on baking sheet for 2 minutes before transferring to a cooling rack to cool completely. Enjoy!
Store cookies in an airtight container, separating layers with a sheet of parchment paper.