Mix the paprika, chilli powder, sunflower oil, salt and mustard together in a bowl.
Rub the mixture onto the meat. avoiding the skin
Wrap the pork in cling film and put into the fridge for an hour.
Preheat the oven to 160C/Gas mark 3.
Put the pork in a roasting tin, skin side up and pour the cider around it. Cover the tin with silver foil and seal the edges.
Cook for 3½ hours then increase the oven temp to 200C Gas 6, remove the silver foil and cook for ½ hour.