Whip up the Marinade: In a medium-sized mixing bowl, simply whisk together the balsamic vinegar, soy sauce, avocado oil, apple cider vinegar, minced garlic, kosher salt, and black pepper until everything is well combined.
Marinate for Tenderness: Add the cube steaks to the prepared marinade, ensuring each steak is fully coated. For the most incredibly tender results, let them marinate in the refrigerator for up to 2 hours. If you're in a rush, even 30 minutes will significantly improve the flavor and texture!
Prep Your Air Fryer: If you wish to simplify cleanup, you can line your air fryer basket or tray with foil. Preheat your air fryer to 400°F (200°C) for 5 minutes.
Air Fry to Perfection: Carefully place the marinated cube steaks in a single layer in your preheated air fryer. To ensure even cooking, avoid overcrowding; cook in multiple batches if necessary.
Flip and Finish: Air fry for a total of 10 minutes, making sure to flip the steaks halfway through the cooking time. The exact cooking duration might vary slightly depending on the thickness of your steaks and your specific air fryer model. Aim for a lovely browned exterior with just a hint of pink remaining in the center – these thinner steaks are best enjoyed when not cooked rare.
Rest and Serve: Once cooked, gently remove the steaks from the air fryer and allow them to rest for 5-10 minutes before slicing or serving. This resting period helps seal in all the delicious juices. Enjoy your tender air fryer cube steak with your favorite healthy side dishes!