1: Lightly wash the apple and dry well. Using a melon baller, core the apples and remove the seeds. Set aside.
2: In a medium bowl, combine the walnuts, oats, brown sugar, raisins, cinnamon, salt, and melted butter and mix until combined.
3: Spoon the filling into the apples, dividing evenly.
4: Preheat the air fryer to 350ºF.
5: Once preheated, place the apples into the fryer on the rack and allow to cook for 15 minutes. The apples should be just tender with some bite to them still.
6: Serve the warm apples with a dollop of ice cream and an extra sprinkle of cinnamon if desired.
