In a large mixing bowl, cream together the butter and sugar until light and fluffy. Beat in the egg and vanilla extract until well combined. In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet ingredients, stirring until just combined. Fold in any optional add-ins if desired.

Cover the dough with plastic wrap and chill in the refrigerator for at least 30 minutes to allow the flavors to meld and to make the dough easier to handle.

Preheat the air fryer to 325°F. Line the air fryer basket with parchment paper or a silicone baking mat to prevent sticking.

Scoop tablespoon-sized portions of dough and roll into balls. Place them in the air fryer basket, leaving space between each cookie. Flatten slightly with your fingers. Cook for 5-7 minutes or until the edges are golden brown.

Allow the cookies to cool in the air fryer basket for 2 minutes before transferring them to a wire rack to cool completely.

Enjoy the cookies warm or at room temperature. Pair them with your favorite beverage for a delightful treat.

Store the cooled cookies in an airtight container at room temperature for up to a week. For longer storage, freeze them in a single layer before transferring to a freezer-safe bag.