Prepare the 1 pcs duck breast, about 400 g, by cutting a crosshatch pattern into the fat layer without cutting into the meat.This helps the fat render off and the skin turn crispy.
Sprinkle 1 tsp salt, 1 tsp black pepper, 1 pinch sugar, and 1 tsp dried thyme or rosemary over both the skin and the meat side of the duck breast.
Preheat the air fryer to 180 °C.(Use a preset program, or let it run for a couple of minutes before cooking.)
Place the duck breast skin-side down in the air fryer basket and cook at 180 °C for about 10 minutes to start rendering the fat and crisping the skin.Start the online kitchen timer here
Turn the duck breast so the skin side faces up, and continue cooking at 180 °C for another 8-15 minutes, depending on the size of the breast and how well done you want it.Check the core temperature in the thickest part from about 8 minutes after flipping. Take the duck breast out at 54-56 °C for pink – the temperature rises 3-4 °C while it rests, so it ends up at about 58-60 °C.Start the online kitchen timer here
Take the duck breast out of the air fryer and let it rest for 5-10 minutes before slicing. This ensures the meat's juices are distributed evenly.Start the online kitchen timer here
Slice the duck breast thinly and serve.
Notes
-Adjusting the cooking time may be necessary depending on your air fryer model and the size of the duck breast.-Always let the duck breast rest before slicing to retain its juiciness.-Remember that air fryers can vary in efficiency, so use a kitchen thermometer to accurately measure the meat's internal temperature.