Put unsalted butter in a bowl and used a hand/ stand mixer to softened.
Add the granulated sugar and brown sugar and beat on a medium speed.
Add vanilla extract, egg, salt and baking soda, beat until all combined.
Then add all purpose flour in increments, mix untill all combined.
Add chocolate chunks and chips and chopped walnuts and mixed using rubber spatula.
Cover the air fryer rack with parchment paper. Scoop 2 tablespoon of dough on the racks and flatten them to make it a cookie shape. Repeat until you had enough cookies on the airfryer rack.
Preheat Airfryer 170 C for 5 minutes. Airfry the cookies for 170 C in 7 minutes until golden brown.
Remove the rack from the airfryer and let it cool for 3 minutes. Serve Warm.