Base: Mix the digestive biscuits and melted butter together and press into an 8" springform tin.
Cheesecake: Whip the cold double cream until stiff peaks form. In a separate bowl, mix the melted and cooled chocolate, cream cheese and icing sugar until smooth. Fold the whipped cream into the cheesecake mixture, then fold in the chopped Snickers pieces. Spread the cheesecake mixture over the biscuit base and chill in the fridge for at least 4 hours, or until set.
Topping: Spread the caramel sauce over the top of the cheesecake, then sprinkle over the remaining chopped Snickers and crushed peanuts. Chill until the caramel has set.
