Preheat the air fryer: Set to 325°F (160°C). Preheating helps the cookies set quickly and prevents spreading.
Cream the butter and sugars: In a medium bowl, beat 6 tablespoons softened unsalted butter with 1/3 cup brown sugar and 3 tablespoons granulated sugar until light and creamy, about 1–2 minutes.
Add egg and vanilla: Mix in 1 large egg and 1 teaspoon vanilla extract until smooth and glossy.
Whisk the dry ingredients: In a separate small bowl, whisk 2 cups finely blanched almond flour, 1/2 teaspoon baking soda, and 1/4 teaspoon salt until well combined.
Combine: Add dry ingredients to the wet mixture. Stir until a soft dough forms.
Fold in 1/2 cup chocolate chips (or your favorite add-in).
Chill briefly (optional but helpful): Pop the bowl into the fridge for 10–15 minutes. Chilling reduces spreading and makes scooping easier.
Prep the basket: Line the air fryer basket with a perforated parchment sheet or lightly spray with oil. Leave room around the edges for airflow.
Scoop the dough: Use a 1.5-tablespoon scoop. Roll lightly into balls and place in the basket with at least 1.5 inches between each.
Gently press the tops to flatten slightly; almond flour cookies don’t spread as much as wheat cookies.
Air fry: Cook at 325°F (160°C) for 7–9 minutes, until edges are lightly golden and centers look set but soft. Do not overbake; they firm up as they cool.
Cool: Let cookies rest in the basket for 3–4 minutes, then transfer to a rack to cool completely. This step helps them hold together.
Repeat: Continue with remaining dough in batches. If your kitchen is warm, keep the dough chilled between batches.