Prepare the apples by washing them well and drying them thoroughly with a clean kitchen towel. At this step, you can choose to peel the apple or leave it with the peel on.

Using a sharp knife trim a small slice off the bottom so the apple stands upright and even.

Core the apple by removing the center and creating a large well in the middle. Remember: don’t go all the way through the apple or the stuffing will come out the bottom.

Make sure the tough core and all seeds have been removed. We used a spoon to gently remove some of the apple flesh, too, so it would hold more filling. Note: The bottom apple "star" will cook thoroughly and can be eaten or discarded after cooking. Set prepared apples aside.

Line the bottom of your air fryer with foil, making sure to cover it well so that nothing leaks out. You can even crimp the sides a little bit to create a small “box” inside your air fryer basket to catch all the juices.

Cube the cold butter into 1 cm cubes and add to the mixing bowl.

Fold in the rest of the ingredients to the mixing bowl and combine into a loose filling.

Using a muddler or a small teaspoon, gently press filling into each apple until it crests the opening with a small mound (see photos).

Place all four apples onto the foil of the air fryer basket.

Start the air fryer at 350F.

At 8 minutes, check your apples to make sure the tops aren't burning. If they are already dark brown, turn the air fryer down to 325F.

Continue cooking, check at the 15-minute mark, and poke an apple with a knife. If the tip doesn't slide in easily, cook for another four to five minutes.

Gently remove apples with tongs and plate. Spoon the melted butter on the warm apples.

Enjoy!