10kg/22lbs cooking apples, preferably Bramley variety, peeled, cored and sliced
175g/6oz porridge oats
875g/1lb 15oz plain flour
3 tbsp cinnamon
2 tbsp cinnamon
500g/1lb 2oz demerara sugar
700g/1lb 9oz demerara sugar
900g/2lb cold unsalted butter