Preheat oven to 325° F. (165 ° C)
Using a sieve or sifter, sift the flour, Baking Powder, Baking Soda and spices, into a large mixing bowl. Set aside.
In a mixing bowl, cream the softened butter.
Whisk eggs and the egg white and add them to the butter and cream together.
Add sweetener and vanilla extract to the creamed butter and eggs and mix well.
Add the pumpkin puree and mix thoroughly until creamy.
Add the dry ingredients a few tablespoons at a time, mixing in between additions.
When the cookie batter is completely mixed, use a medium sized cookie scoop, and place scoops onto a baking stone or parchment lined baking sheet.
Flatten cookies with the back of a spoon or a spatula.
Bake for 15 minutes or until golden brown.
Remove from the oven and allow cookies to cool on a cooling rack