3 pound London broil about 2 inches thick (see the headnote for more information)
2 tsp table salt (or better yet kosher salt)
ground black pepper, to taste
Olive oil spray
Instructions
Pat the London broil dry with paper towels. Massage the salt and pepper into both sides of the steak. Generously coat all sides with olive oil spray.
For multi-tray machines, position the cooking tray in the machine’s middle position. If desired, the drip tray can be at the bottom of the machine for easier cleanup.
For all machines, Set the machine to "Air Fry."Set the temperature to 375°F and the timer to 30 Minutes (which will be a little more than you need). Press Start.
When the machine beeps, indicates "Add Food" or is heated to the proper temperature, set the meat in the basket or on the tray.
Air-Fry, turning once after 12 Minutes but otherwise ignoring any "Turn Food" indicator, until an instant-read meat thermometer inserted into the center of the cut registers 140°F for medium-rare or 150°F for medium, 25 to 30 Minutes.
Turn off the machine and use nonstick-safe kitchen tongs to pick up and transfer the beef to a clean cutting board. Cool for 5 to 10 Minutes to help the juices reincorporate into the meat’s fibers.
To carve, run your clean fingers over the cut to see which way its grain runs (like the grain in a piece of wood). Use a very sharp knife to slice across this grain (that is, at a 90-degree angle to the grain) to create extremely thin slices—as thin as you can make them, certainly no more than 1/8 inch thick. Thicker slices will be tougher.
Marinate the cut: Set it in a 9 x 13-inch baking pan and pour some bottled teriyaki sauce, barbecue sauce, classic Italian dressing, or your favorite bottled marinade over the meat. Turn once and refrigerate for up to 6 hours, turning at least one more time to evenly distribute the marinade.