In a bowl beat butter, sugar and brown sugar together.
Then add egg and vanilla, mix.
In a small bowl mix flour, salt and baking soda, then slowly incorporate with sugar mixture.
Use spoon to fold in chips.
Preheat air fryer to 300 degrees for 5 minutes.
Place piece of parchment paper into basket and spoon equal size dollops on top, 4 for each round with plenty of space in between.
Air fry at 300 degrees F for 8 minutes (for medium sizes, large will take more time). Take out when edges are browned but middle still looks just a bit wet. Lift out paper and set on cooling rack until completely cool and then enjoy very soft cookies.