Pat the ribeye dry and rub Creamy Garlic Mustard all over the steak. Place in a gallon sized bag and marinate over night. When ready to cook, place steak in the air fryer basket and add another coat of creamy garlic mustard. Set the air fryer to 400 degrees F and cook for 12-15 minutes, flipping halfway through, depending on how well you want your steak done. Serve with Creamy Garlic Mustard for dipping.