Prepare the steaks by removing them from the refrigerator 30-45 minutes before cooking to bring them to room temperature, which ensures even cooking.
Preheat your air fryer to 400°F (200°C) for at least 3 minutes, creating the hot environment needed for a proper sear.
Pat the steaks completely dry with paper towels – this is crucial for achieving a good sear rather than steaming the meat.
Brush steaks with olive oil on all sides, then season generously with salt and pepper, pressing the seasonings into the meat to adhere.
Place steaks in the air fryer basket, making sure they don’t overlap and there’s space for air to circulate around each piece.
Cook for 5 minutes, then flip the steaks and cook for another 3-6 minutes, depending on thickness and desired doneness (see temperature guide in Notes).
Check internal temperature with a meat thermometer – 125°F for rare, 135°F for medium-rare, 145°F for medium, remembering the temperature will rise another 5°F while resting.
Transfer steaks to a cutting board and optionally top with butter and herbs, then tent loosely with foil and rest for 5-10 minutes to allow juices to redistribute.
Slice against the grain for maximum tenderness and serve immediately for the best flavor and texture experience.