Peel the prawns and discard the shells. Using a small sharp knife, remove the fine digestive cord. Wash them in cold water, rinse and pat dry with kitchen paper. Coarsely chop.
Put the prawns and pork in a large bowl, add the salt and pepper and mix well, either by kneading with your hand or by stirring with a wooden spoon. Then add the rest of the filling ingredients, down to and inclu