Wash the potatoes and slice them like a fan - about 3/4 of the way to the bottom.
Place the potatoes on a microwave-safe plate. Microwave on high power for 4 minutes.
Flip the potatoes over and microwave for an additional 3 - 4 minutes, until the potatoes are beginning to soften
Lightly coat the potatoes with vegetable oil and sprinkle them with salt. Transfer them to the basket of your air fryer, sliced side up.
Air fry the potatoes at 375 degrees F for 10 - 12 minutes, or until they are tender and the skin is starting to get crispy.
Meanwhile, microwave the butter until melted. Stir in the lemon juice, chopped parsley and a pinch of salt.
Once the potatoes are finished air frying, brush them generously with the parsley butter to serve.