6-8 apples (a mixture of cooking and eating varieties), peeled, cored, cut into 2cm/戮in chunks
100驳/3陆辞锄 porridge oats
300驳/10陆辞锄 plain flour
100驳/3陆辞锄 brown sugar
pinch ground cinnamon
150g/5oz demerara sugar
70g/2陆oz unsalted butter
200g/7oz cold butter, cubed