Perfectly crispy crackling is hard to beat, and surprisingly easy to make! If you have yet to try making it yourself, just follow these simple steps to ensure cracking crackling, every time. For reference, the cooking times given here are for a 2kg Greendale Pork Loin Roast cooked in an electric fan oven; the scoring and salting method is the same for any weight of skin-on pork roasting joint, but please remember that a difference in joint weight will affect the cooking time needed.