In a bowl, add half of the butter, flour, and egg yolk and mix until a soft dough forms.
Place the dough onto a floured surface and roll into a 6-inch round circle.
In a baking pan, place the remaining butter evenly and sprinkle with sugar.
Top with the apple wedges in a circular pattern.
Place the rolled dough over apple wedges and gently press along the edges of the pan.
Slide the Air Fryer Basket inside and adjust the temperature to 390 °F to preheat for 5 minutes.
After preheating, arrange the baking pan into the Air Fryer Basket.
Slide the basket into Air Fryer and set the time for 25 minutes.
After cooking time is finished, remove the baking pan from Air Fryer and set aside to cool slightly before serving.