Heat oven to 350 degrees. Line baking sheet with parchment paper.
In a large bowl, combine butter and sugar and beat with mixer until light and fluffy. Add pumpkin, egg and vanilla and mix until combined. Sift flour, baking powder, baking soda, salt and spices in small bowl.Add half of the dry ingredients to wet and mix well. Finish by adding the rest of the dry and then gradually stir in chocolate chips. Make sure not to over stir as this will lend to tough cookies. Spoon about 1 tbsp of cookie dough onto baking sheet and bake for 15 minutes or until lightly brown around the edges.