In a bowl mix dry ingredients, set aside. In another bowl use a mixer to cream together softened butter, brown sugar, egg and vanilla. Then incorporate dry ingredients to make a batter. Gently fold in oats and raisins.
Preheat air fryer to 300 degrees. Lay a piece of parchment paper at bottom of the basket with scoops of dough with a bit of space between them
Air fry for about 10 minutes (timing will vary depending on thickness, size, and preference) until golden brown and cracking along the outside.