Prep the hot dogs. Cut slits in the hot dogs and arrange them in the basket of the air fryer.
Fry at 400℉ for 4 minutes, flipping halfway through.
Remove the hot dogs from the air fryer. Place 1 hot dog in each bun. Brush the tops of the buns and hot dogs with the melted butter. Fry the hot dogs in the buns for 3 minutes.
Serve with ketchup, mustard, and relish.
Notes
Toppings are not included in nutritional information.