Preheat your air fryer to 375°F (190°C).
Slice the apples into thin wedges.
In a bowl, mix sugar, cinnamon, and nutmeg.
Dredge apple slices in flour, dip in eggs, then coat with breadcrumbs.
Spray the air fryer basket with cooking spray and arrange apple slices in a single layer.
Air fry for 8–10 minutes, flipping halfway through, until golden brown and crispy.
Serve warm with caramel or whipped cream.