Preheat Oven and Prep Baking Sheet:
Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper and set aside.
Mix Dry Ingredients:
In a medium mixing bowl, whisk together the flour, baking powder, baking soda, cinnamon, nutmeg, cloves, and salt. Set aside.
Cream Butter and Sugars:
In a large mixing bowl, cream the softened butter, granulated sugar, and brown sugar until light and fluffy, about 2–3 minutes.
Add Wet Ingredients:
Beat in the pumpkin puree, egg, and vanilla extract until well combined.
Combine Wet and Dry Mixtures:
Gradually add the dry ingredients to the wet mixture, mixing just until combined. Be careful not to overmix.
Scoop and Bake:
Using a cookie scoop or tablespoon, drop rounded spoonfuls of dough onto the prepared baking sheet, spacing them about 2 inches apart.
Bake for 10–12 minutes, or until the edges are set and the tops are slightly firm.
Cool:
Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a cooling rack to cool completely.
Add the Glaze (Optional):
In a small bowl, whisk together the powdered sugar, milk, vanilla extract, and cinnamon until smooth. Drizzle or spread the glaze over the cooled cookies.