Preheat your oven to 375°F and line a baking sheet with parchment paper.
In a medium bowl, whisk together flour, baking soda, salt and spices. Set aside.
In a large bowl, whisk together melted butter, brown sugar, granulated sugar, pumpkin puree, and vanilla extract.
Add the flour mixture to the butter mixture, and fold until just combined.
Fold in the chocolate chips.
Scoop the cookie dough into 6 cookies using a 1/4 cup scoop, flattening each cookie until 1 inch thick. Transfer to the baking sheet and leave at least 2 inches (5cm) between each cookie.
Bake for 14-17 minutes, or until lightly golden around the edges.
Cool on the baking sheet.