Preheat the oven to 350.
In a mixing bowl or stand mixer, cream the butter or margarine with the sugars. Add the vanilla, eggs and pumpkin puree and combine well. Add the flour, baking powder, cinnamon, cardamom and salt and mix until batter forms.
In a small bowl, combine the sugar, cinnamon and nutmeg.
Using a small ice cream scoop or cookie scoop, scoop ball of dough and form into uniform circle. Roll in the sugar-spice mixture. Place on a greased baking sheet or baking sheet with non-stick cooking mat.
Bake in the preheated oven for 10 minutes. Let cool slightly before serving.