1. Mix all cake ingredients. 2. Pour into a greased pan/ pyrex.3. Bake in preheated oven for 20-25min.4. Remove and cool.5. Whip cream with icing sugar to taste until stiff peaks form. Leave aside.6. Beat cream cheese smooth.7. Melt white chocolate and then beat into cream cheese.8. Fold the whipped cream into cream cheese mixture.9. Roughly crumble cake10. Place some into individual dessert glasses. 11. Spoon in truffle cheesecake mixture.12. Repeat another 2 layers of each.13. Garnish with more crumbled cake and pistachio slivers. 14. Leave in fridge to chill and set. 15. Serve cold.