Preheat the oven to 350°F. Line two baking sheets with parchment paper and set aside.
In a medium bowl, cream together the sugar and butter until light and fluffy. Mix in the egg, vanilla and pumpkin until fully combined.
Add in the flour, baking soda, baking powder and allspice until fully incorporated.
Scoop the batter on the prepared baking sheet, and bake in the preheated oven for 15-20 minutes.