Mix the crushed biscuits with melted butter until combined. Press into a tin to form the base. Chill in the fridge.
In a bowl, combine double cream, cream cheese, and Nutella.
Whisk until thick and smooth, similar to ice cream consistency.
Spread the mixture over the chilled base and smooth the top.
Refrigerate for at least 4 hours or overnight for best results.
Gently melt the Nutella until slightly softened.
Pour the melted Nutella over the cheesecake and spread carefully.
Sprinkle chopped hazelnuts around the edges.
Chill again for 1 hour before serving your No Bake Nutella Cheesecake.