Chocolate & Raspberry Oreo Cheesecake

1. Crush 200g Oreo biscuits, microwave for 2 minutes. Press firmly into serving dish.
2. In a separate bowl, whisk together 1litre full cream yoghurt and 3tbsp Cocoa. Microwave for 2-3 min, whisk, and microwave for another 2-3 min.
3. Pour onto biscuit base and refrigerate overnight. Top with fresh raspberries and grated chocolate