Preheat the air fryer to 200˚C/400°F for 5 minutes.
Brush with sunflower oil over the steaks on both sides. Season with salt and pepper to taste.
Brush the broccoli with some clarified butter or spray with some oil spray.
Place the steaks into the air fryer baskets with the broccoli. You may have to do it in batches depending on the size of your air fryer.
Cook the striploin for 5 minutes for rare, 7 minutes for medium or 10 minutes for well done. Flip the steaks halfway through cooking if desired to help better colouration on both sides.
Remove the broccoli after 5 minutes to ensure they are not overcooked and keep aside nice and warm until the steaks are cooked to your liking.
Remove the steaks from the air fryer and set aside for a moment for the juices to settle.
Serve the steak with the broccoli and if desired baked potatoes.