Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper if using.
In a mixing bowl, blend the softened butter, brown sugar, and granulated sugar until creamy and well combined.
Add the pumpkin puree, egg, and vanilla extract to the mixture, and whisk until smooth.
In a separate bowl, combine the all-purpose flour, baking soda, baking powder, cinnamon, nutmeg, and salt.
Gradually stir the dry ingredients into the wet ingredients until just combined. Be careful not to overmix.
Fold in the chocolate chips using a spatula.
Using a cookie scoop or tablespoon, drop rounded portions of the dough onto the prepared baking sheet, spacing them about 2 inches apart.
Bake in the preheated oven for 10-12 minutes, or until the edges are lightly golden and the centers are set.
Let the cookies cool on the baking sheet for about 5 minutes before transferring them to a wire rack to cool completely.