Scrub the sweet potatoes under running water and dry them thoroughly with a clean towel so the skins are no longer damp.
Use a fork to poke holes all over each sweet potato, going about halfway into the flesh to help steam escape as they cook.
Rub the sweet potatoes with oil, coating the skin lightly and evenly, then sprinkle with salt.
Place the sweet potatoes in a single layer in the air fryer basket, leaving space around each one for air to circulate.
Cook at 390°F (about 200°C) for 35–45 minutes, turning once halfway through, until a thin knife slides easily into the thickest part.
Transfer the potatoes to a plate, let them rest for a couple of minutes, then slice lengthwise, gently squeeze the ends to fluff the centers, and add butter, cinnamon, or your favorite toppings before serving.
Notes
Air fryers vary, so start checking for doneness around 30 minutes the first time you make this recipe and adjust the timing for your specific machine. Leftover potatoes can be cooled, refrigerated, and reheated in the air fryer or microwave.
Keyword Air Fryer Baked Sweet Potato, air fryer sweet potatoes, easy side dish