In a medium bowl, whisk together the flour, cocoa powder, baking soda, and salt. Set aside.

In a separate large bowl, beat the butter, brown sugar, and granulated sugar until smooth and creamy.

Add the egg and vanilla extract to the butter-sugar mixture and mix until fully combined.

Gradually mix the dry ingredients into the wet mixture until a dough forms.

Gently fold the mini chocolate chips and chocolate chunks into the dough, ensuring they are evenly distributed.

Scoop tablespoon-sized portions of dough and roll them into balls. Place them on a piece of parchment paper, spaced about 2 inches apart.

Preheat your air fryer to 350°F (175°C).

Place the cookie dough balls in the air fryer basket, ensuring they don’t touch. Depending on your air fryer’s size, you may need to bake in batches.

Air fry for 8-10 minutes, or until the edges are firm and the center is set.

Let the cookies cool in the basket for a few minutes before transferring them to a wire rack to cool completely.