Prep the steak: Take the ribeye out of the fridge 20–30 minutes before cooking. Pat it very dry with paper towels.
Dryness equals better browning.
Season: Rub both sides with oil. Sprinkle evenly with salt, pepper, and garlic powder. Press the seasoning in so it sticks.
Preheat the air fryer: Set to 400°F (200°C) for 5 minutes.
A hot basket helps create a nice crust.
Cook the first side: Place the steak in the basket, leaving space around it. Air fry 5–7 minutes, depending on thickness.
Flip and finish: Turn the steak and cook another 4–6 minutes. For medium-rare aim for an internal temp of 130–135°F (54–57°C) when you pull it.
The temp will rise a few degrees as it rests.
Make quick garlic butter: While the steak cooks, mash the butter with the minced garlic and a pinch of salt.
Rest and baste: Transfer the steak to a plate, top with the garlic butter, and tent loosely with foil. Rest 5–7 minutes so the juices redistribute.
Finish and serve: Sprinkle with chopped herbs and a tiny squeeze of lemon if you like. Slice against the grain and serve immediately.