In a medium bowl, sift the flour, cinnamon, pumpkin pie spice, baking powder, baking soda, and salt. Set aside. Place the pumpkin puree on top of a plate. Press 1 paper towel on the pumpkin to soak up the moisture. Do this again 4 more times. In the end it will look like a soft dough.
2 cups All-purpose flour, 2 teaspoon Ground cinnamon, 1 teaspoon Pumpkin pie spice, ½ teaspoon Baking powder, ½ teaspoon Baking soda, 1 teaspoon Salt, ¾ cup Canned pumpkin puree
Using a mixer, beat the butter, brown sugar, and sugar on high speed for 2 minutes. Add the pumpkin puree, vanilla, and egg on medium speed until combined.
1 cup Unsalted butter, 1 cup Brown sugar, ¼ cup White granulated sugar, 1 teaspoon Pure vanilla extract, 1 Large egg yolk
Add the dry ingredients and mix on low speed until just combined.
Preheat the oven to 350°. Line two cookie sheets with parchment paper. Let the dough sit for 10 minutes while the oven preheats. In a small bowl, mix the sugar and cinnamon together.
½ cup White granulated sugar, 1 teaspoon Ground cinnamon
Place the dough in the freezer for 15-20 minutes for the dough to firm slightly so it is easier to roll in the cinnamon sugar.
Use a large cookie scoop to scoop the cookies. Roll each cookie dough ball into cinnamon sugar. Place 6 cookie dough balls on to the cookie sheet. Sprinkle extra cinnamon sugar on top.
Bake on sheet at a time for 13-15 minutes. Bake until the edges are slightly golden.
Let the cookies sit for 5 minutes before transferring to a cooling rack.