**Preheat the oven**
Preheat your oven to 350°F (175°C) and line baking sheets with parchment paper.
**Mix the dry ingredients**
In a medium bowl, whisk together the flour, baking soda, baking powder, salt, pumpkin pie spice, and cinnamon. Set aside.
**Cream the butter and sugars**
In a large mixing bowl, use an electric mixer to beat the softened butter, granulated sugar, and brown sugar until light and fluffy, about 2–3 minutes.
**Add the wet ingredients**
Mix in the pumpkin puree, egg, and vanilla extract until well combined.
**Combine wet and dry ingredients**
Gradually add the dry ingredients to the wet ingredients, mixing just until the dough comes together. Avoid overmixing.
**Shape the cookies**
Scoop tablespoon-sized portions of dough and roll them into balls. Roll each ball in granulated sugar and place them on the prepared baking sheets, spacing them about 2 inches apart.
**Bake**
Bake for 10–12 minutes, or until the edges are set and the centers are slightly puffy.
**Cool and serve**
Allow the cookies to cool on the baking sheets for 5 minutes before transferring them to a wire rack to cool completely. Enjoy plain or with a sprinkle of extra cinnamon sugar on top.