Preheat oven to 350 degrees and line 2 cookie sheets with parchment paper
Using a medium bowl, whisk together the flour, baking powder, baking soda, salt, and pumpkin pie spice
Using a large mixing bowl, beat together the brown sugar, ½ C sugar, eggs, pumpkin puree, and vanilla until combined and smooth
Beat in the butter until combined
Gradually beat in the dry ingredients until combined and smooth
Using a small bowl, combine the sugar and powdered sugar
Using a small ice cream scooper, scoop out some dough and drop it into the sugar mixture
Completely coat the dough, remove the dough and roll it into a ball
Place onto the cookie sheet
Repeat steps with remaining dough
Bake in the oven for 12-14 minutes or until the cookies are puffy
Remove from oven and allow to cool completely