3
For the crumble, preheat an oven to 170°C/gas mark 3. Mix the flour and butter together using your fingertips to create a breadcrumb-like texture. Stir in the oats, sugar and carom seeds, then tip the mixture out onto a baking sheet lined with baking paper and press flat. Bake for 20-25 minutes, until golden brown, shaking the tin every 5 minutes or so to ensure even cooking. Once cooked, remove from the oven, break up into small pieces with a fork and allow to cool