Method
Preheat the oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a medium bowl, whisk together the flour, baking powder, baking soda, salt, cinnamon, nutmeg, and cloves until well combined.
In a large bowl, beat the softened butter and sugar together with an electric mixer on medium speed until light and fluffy, about 2 minutes.
Add the pumpkin puree, egg, and vanilla extract to the butter mixture. Mix on low speed until fully incorporated and smooth.
Gradually add the dry ingredients to the wet ingredients, mixing on low speed just until the dough comes together. Do not overmix.
Drop rounded tablespoons of dough onto the prepared baking sheet, spacing them about 2 inches apart.
Bake for 12-14 minutes, or until the edges are lightly golden and the centers are set.
Let the cookies cool on the baking sheet for 5 minutes, then transfer them to a wire rack to cool completely.