Combine all the ingredients in a food processor and grind until a wet marinating paste. It should not be completely smooth.
Score the pork skin and place in a baking dish. Smother all over with the marinade. Marinate overnight ideally (but no less than 2 hours) turning several times.
Preheat the oven to 150°C/130°C fan. Place the pork skin side up, cover the baking tray with foil and bake for three hours.Turn up to the oven to 250°C/230°C and remove the foil. Bake for a further half an hour until the meat is caramelised and crispy.
Serve with seasonal Oil Down.