Defrost in the fridge for 48 hours and bring up to room temperature 30 mins before cooking.
Season with salt and black pepper. Heat skillet on low to medium heat. Cook without flipping until browned, about 4 to 6 minutes.
Now flip. If you want a cheeseburger, now is the time to add a slice of cheese. Cover with a lid and cook for about 8 to 10 mins, which will result in a medium to well-done burger. Remove the burgers from the heat and let it rest for about 5 minutes to seal in the juices.