Quintessential British autumn pudding: tart Bramley cooking apples and wild blackberries sweetened with demerara sugar, baked beneath a buttery, crunchy crumble topping of flour, rolled oats, and butter.
Toss sliced Bramley apples and blackberries with caster sugar and cinnamon in a 24cm baking dish.
In a bowl, rub cubed cold butter into plain flour with your fingertips until coarse crumbs form. Stir in rolled oats and demerara sugar.
Scatter crumble mixture evenly over fruit without pressing down, keeping it light and crumbly.
Bake at 190°C for 35-40 minutes until fruit juices bubble around the edges and crumble is deeply golden and crunchy. Serve hot with custard.