You will need pre-baked cooled potatoes for this recipe. If you haven't already baked them, lightly rub or spray the potatoes with olive oil, then sprinkle them with salt & pepper. Place the potatoes in the air fryer basket and cook for 35-40 minutes, or until they are fork-tender and the skins are crispy.
Once the potatoes are cooked, remove them from the air fryer and let them cool slightly until they are safe to handle.
Cut each potato in half lengthwise. Use a spoon to carefully scoop out the flesh, leaving about ¼ inch of potato attached to the skins. Keep the scooped-out potato for another use, such as mashed potatoes.
Spray the skins with olive oil and season with salt and pepper. Place the potato skins in the air fryer at 200˚C/400˚F, skin side down. Cook for 5 minutes, or until the skins are golden brown and crispy.
Remove the potato skins from the air fryer and let them cool slightly.
Once the potato skins are cool enough to handle, sprinkle each one with shredded cheddar cheese and crumbled cooked bacon. (If you haven't cooked the bacon already, you can cook it whilst the potatoes are in the air fryer - Step 4)
Return the loaded potato skins to the air fryer and cook for 2-3 minutes, or until the cheese is melted and bubbly.
Remove the potato skins from the air fryer and transfer them to a serving platter.
Top each potato skin with a dollop of sour cream and a sprinkle of sliced spring onions.
Serve the air fryer crispy loaded potato skins immediately as a delicious appetizer or snack.