Cream together the butter and sugars in the bowl of a mixer
Add the vanilla and egg, mix until light and fluffy (approx 3-5 minutes)
Slowly add in the flour, salt, baking soda, and spices.
Fold in chocolate chunks.
Preheat your air fryer to 350ºF. Line the air fryer basket with some parchment paper.
Using a cookie scoop, drop scoops of dough into the parchment, then flatten each cookie (these cookies don’t spread too much, so shaping then is essential)
If topping with the flake salt, sprinkle the tops of the flattened cookie dough now.
Bake for about 5 minutes. Remove the cookies from the air fryer and let cool completely. Repeat withthe remaining dough.
Set aside for assembly when cooled.