01 - Peel, core, and slice the apples into 1/4-inch wedges.
02 - In a bowl, combine melted butter, sugar, and cinnamon. Add apple slices and toss to coat evenly.
03 - In a separate bowl, mix oats or breadcrumbs, flour, and salt until combined.
04 - Dredge the buttered apple slices in the oat mixture, pressing gently to adhere the coating.
05 - Place the coated slices in a single layer in the air fryer basket, working in batches if necessary.
06 - Cook at 375°F for 10–12 minutes, shaking the basket halfway through, until apples are golden and crispy.
07 - Transfer to serving plates and top with whipped cream or vanilla ice cream if desired.