First prepare the apples by placing the apple slices in a saucepan with 120mls of cold water and 4 tsp of sugar. Cover and simmer for 10-15 minutes stirring occasionally until the apples have softened. Leave to cool.
Mix the breadcrumbs, salt, pepper and parsley together in a large bowl.
Add in the carrot, celery and onions and mix well.
Add the eggs and mix well.
Add the stewed apples to the breadcrumb mixture and using your hand knead it al together. The stuffing should be quite moist.
Place in a large greased roasting tin. Cover it with tin foil and place in a preheated oven at 180 for about 1 ½ hours. Remove tinfoil for the final 15 minutes.