Preheat the oven to 200°C/400°F/Gas 6. Mix the fruit, 75g (3oz) of the sugar and lemon rind and juice in a shallow ovenproof dish
Make the crumble by mixing the breadcrumbs, ground almonds and remaining sugar. Rub in, or cut in, the butter roughly and spoon the mixture evenly over the fruit. Scatter with slivered or flaked almonds
Bake the crumble for about 30 minutes, turning the oven heat down to 180°C/350°F/Gas 4 after 15 minutes when the top has browned. Serve warm or cold with plenty of cream - clotted or double!