Step 1

Preheat air fryer to 350 degrees.

Step 2

Add the butter, brown sugar, and granulated sugar to a mixing bowl and stir with a spoon to combine.

Step 3

Add the egg yolk and vanilla and stir well.

Step 4

Mix in the flour, baking soda, and salt to form a dough.

Step 5

Stir in the chocolate chips.

Step 6

Shape the dough into a large ball and flatten lightly to form a ball of cookie dough that is about 4 inches in diameter.

Step 7

Carefully place a piece of parchment paper down in the preheated air fryer basket and place the cookie dough in the center. The dough will spread a bit, so be sure that the parchment is large enough to allow space for spreading.

Step 8

Air fry for 5 minutes.

Step 9

Cool for 5 minutes before serving.