1cupchocolate chips175g, and some extra for topping
Preheat the oven to 180C/350F/Gas 4, and line a baking tray with parchment paper or a silicone mat. Set aside.
Whisk together the flour, baking soda, cornflour, salt, and spices. Set aside.
Whisk together the butter and sugar until combined. Add the pumpkin puree and vanilla, and mix until combined. Add the dry ingredients, and mix until just combined. Fold in the chocolate chips.
Roll the dough into 1.5oz balls, about 14 balls. Place on the prepared baking tray, and press the extra chocolate chips on top. Bake for 10 - 12 minutes. Do not over-bake. They will look very soft in the centre, but they will set whilst cooling. Allow to cool on the baking tray for 10 - 15 minutes before transferring to a wire rack to cool completely.
Cookies stay fresh covered at room temperature for up to 1 week. Cookie dough balls can be kept in the fridge for up to 5 days, or frozen for up to 3 months. Bake from frozen for an extra minute.