Preheat your air fryer to 400 degrees Fahrenheit. Do not skip this step. Please make sure your air fryer is hot. Preheat for at least 5 minutes. If you do not have a preheat function, simply run your air fryer empty for 5 minutes.While your air fryer is preheating, pat your filet mignon with a paper towel to remove any excess liquid.

Season the meat with oil on both sides, add some salt and pepper, to taste, and garlic powder. Sometimes I press finely minced fresh garlic into the meat. If using a marinade, let the steak marinate for 15 to 30 minutes.

Place the steak in the air fryer basket and let it cook for about six to eight minutes, depending on the thickness of the meat.Turn the steak over and cook it for another six to eight minutes or until an internal temperature of 130°F is reached for medium-rare doneness.For reference: The thickness of my filet mignon is usually about 1 and ½ inches and I cook it 6 minutes per side for a medium-rare doneness.

After reaching the desired doneness cover the steak with aluminum foil for 3-5 minutes. So that all the flavor can easily absorb into the steak.

Top it with the optional garlic-parsley butter and Enjoy!!Recipe: Soften 3 tablespoons of unsalted butter and mix in two finely minced garlic cloves. Add a touch of salt and pepper, to taste. I also love to add some herbs like finely chopped parsley or thyme. Spread this delicious butter over your cooked filet mignon, and watch as it melts into the steak, adding a creamy and garlicky twist to every bite.