Wash the apples, core them, and slice into fry-like sticks about ½-inch thick. Pat dry with a paper towel.

Set up your coating station with three bowls: flour in the first, whisked egg and milk in the second, and a mixture of panko breadcrumbs, sugar, and cinnamon in the third.

Dredge each apple stick in the flour, dip into the egg mixture, then roll in the breadcrumb mixture, pressing gently to coat.

Spray the air fryer basket with cooking spray, arrange the coated apple fries in a single layer, and set the air fryer to 375°F (190°C).

Air fry the apple fries for 8-10 minutes, flipping halfway through until golden-brown and crispy.

Toss the hot apple fries in a mixture of cinnamon and sugar if desired. Serve warm with dips like caramel sauce or whipped cream.