- Line the base of a 22cm springform tin with baking paper and lightly grease the sides. Set aside until needed. 
- Process the chocolate ripple biscuits (or similar) until the resemble breadcrumbs. Add the melted butter and stir until combined. 
- Pour the biscuit mixture into your prepared tin and use a large metal spoon to cover the base with the mixture and flatten the surface. 
- In the bowl of an electric mixer, add the softened cream cheese, cream, caster sugar and vanilla extract and mix on a medium to high speed or until the mixture is thick, creamy and smooth. 
- Meanwhile, chop the Mars Bars into small pieces and place in a microwave safe bowl. Cook for 30 second spurts (stirring in between each cook) until they have melted. 
- Add the melted Mars Bars to your cream cheese mixture and mix on a medium speed to combine. Remove the mixer bowl from the stand and add 1 packet (approx 155g) of Maltesers and gently stir them through. 
- Pour the cheesecake mixture over the biscuit base and top with the remaining Maltesers. 
- Place in the fridge to set. Ideally you want to leave this overnight, but is should be ok after 4 hours. 
- Remove the set cheesecake from the fridge and serve.