01 - Preheat the oven to 350°F and line two baking sheets with parchment paper.
02 - In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy.
03 - Add pumpkin purée, egg, and vanilla extract to the creamed mixture and blend until fully combined.
04 - In a separate bowl, whisk together flour, baking powder, baking soda, salt, cinnamon, nutmeg, cloves, and ginger.
05 - Gradually add the dry ingredients to the wet mixture, stirring just until incorporated without overmixing.
06 - Fold in chopped nuts and/or chocolate chips, if using.
07 - Drop tablespoon-sized portions of dough onto the prepared baking sheets, spacing them about 2 inches apart.
08 - Bake for 13 to 15 minutes, or until cookies are set and exhibit a light golden color.
09 - Allow cookies to cool for 5 minutes on the baking sheets before transferring them to a wire rack to cool completely.