About this recipe:Truffle-like chocolate cheesecake in a chocolate biscuit crust. If this does not drive your mate wild, keep the recipe and replace him or her. Note: The topping for this cake is your choice, you could use chocolate dipped strawberries, purchased chocolate truffles, or melt chocolate and/or white chocolate and drizzle it over the top.
In a large mixing bowl, mix together crushed vanilla wafers, icing sugar, cocoa, and butter by hand. Press ingredients into a 23cm springform pan.
In the top of a double boiler or bowl over simmering water, melt the chocolate chips, making sure that they are very smooth.
In a large bowl, beat cream cheese until fluffy with an electric mixer. Gradually beat in condensed milk until smooth. Mix in melted chocolate, eggs, and vanilla. Beat with electric mixer on low speed until the ingredients are thoroughly blended.
Pour the filling into the prepared crust.
Bake in preheated oven for 55 minutes. The cake will seem underbaked in the centre, but will continue to cook after you remove it from the oven.