FILLING : In a large saucepan add the prepared apples , sugar , water and cinnamon , on low to medium heat , cover and cook , stirring occasionally , for about 20 minutes or until the apples are just softened then remove from the heat and pour out any excess liquid , which may be kept for other use or garnish if desired , then add the marmalade and gently mix through . set aside to cool whilst you make the pastry .