Preheat oven to 220'C / 350'F / Gas Mark 4-5.

If you've got the rind on for crackling, lightly score the rind, rub a little oil over the skin and rub in a generous amount of salt on top of the skin and into the score lines.

Cook the pork in the oven for 20 minutes before reducing the heat to 180'C.  In total, you should allow 35 minutes per 450g plus 35 minutes to finish. 

Delicious served with roast potatoes and seasonal veg.

Nutritional content per serving, listed ingredients only:
Kcals - 164
Fat (g) - 6.1
Protein (g) - 27.1
Carbohydrate (g) - nil
Sugars (g) - nil
Salt (g) - 0.2