Turn your airfryer on to 200 degrees Celsius (392 degrees Fahrenheit).

Sprinkle salt on both sides of the duck breasts. This is a gourmet salting, where you draw out a bit of the meat's moisture and the salt is more easily absorbed into the meat. This makes it juicier.

Let the breasts sit for 5 minutes and brush off most of the salt.

Sprinkle rosemary on the meat side.

Spray or brush the top with oil.

Place the duck breasts in the airfryer basket.

Cook at 200 degrees Celsius (392 degrees Fahrenheit) for 10 minutes.

Take them out and let them rest for 5 minutes.

Slice the duck breast.

Add freshly ground pepper and flake salt when serving.

Bon appétit.