Preheat your Air Fryer to 390 degrees F (or the closest setting on your model). If needed, trim the tips off the corn cobs or cut them in half with a sharp knife to ensure they fit comfortably in the Air Fryer basket.

Place the cleaned corn cobs in a baking dish. Drizzle them generously with the melted butter or oil, then season evenly with salt and pepper. Toss the corn using tongs or shake the dish to coat all sides. Carefully transfer the seasoned corn cobs into the preheated Air Fryer basket.

Air fry for 8-10 minutes, or until the kernels are tender and slightly charred. Make sure to shake the basket or use tongs to rotate the cobs halfway through the cooking time for even browning. Remember, the corn will continue to soften a bit after it's removed from the air fryer.

Once cooked, transfer the air-fried corn cobs to a platter or individual plates. Serve them whole, or for an easier eating experience, slice the kernels off the cob and serve warm.