For best results, defrost the burgers.
Take a cast iron pan and place over a medium heat.
Add a little Ghee or Beef Dripping to the pan.
Place the burgers into the pan and cook for about 8 minutes, regularly flipping the burgers until just cooked through.
Leave to rest for 5-10 minutes, then serve.
Sizzle on the BBQ. cook on each side for around 3-4 minutes, away from direct flame.