Wash and scrub the potatoes. Pierce each potato several times with a fork.
Rub the potatoes with 1 tablespoon of melted butter each, then sprinkle with salt and pepper.
Place the potatoes in the air fryer basket in a single layer. Cook for 40-50 minutes, flipping halfway through, until tender when pierced with a fork.
Once cooked, let the potatoes cool slightly. Cut each potato in half lengthwise. Scoop out the flesh into a bowl, leaving a thin shell. Be careful not to break the skins.
Mash the potato flesh with sour cream, remaining melted butter, shredded cheddar cheese, salt, and pepper. Mix until well combined.
Spoon the potato mixture back into the potato skins. Top with more cheese if desired.
Return the stuffed potato halves to the air fryer basket. Cook for another 5-8 minutes, or until the cheese is melted and bubbly.
Garnish with chives and bacon bits, if using. Serve hot.
Notes
For extra crispy skins, you can brush them with oil before the initial cooking. You can also broil them for a minute or two at the end to get them extra browned.