Can someone give me a good recipes for chocolate biscuit cake?

not too dark, not too rich..just riiiight :)Can someone give me a good recipes for chocolate biscuit cake?
12 ounces (340 gram) of chocolate (eating chocolate rather than cooking chocolate)


4 ounces (113 gram) of butter or margarine


One regular sized can of condensed milk


One or two packets of biscuits(called cookies in the US)


2 Large Floppy Johns 2 Tart pops





Place 6 oz of chocolate, 4 oz of butter or margarine, and the contents of one can of condensed milk in a double boiler.


Stir.


Melt over medium heat.


Remove it from the heat.


Stir in an amount between one, and one and a half packets of biscuits. Break / crush / stir in the biscuits. More crumbs from more biscuits gives a firmer cake; fewer crumbs or biscuits gives you a gooey cake with lumps of biscuits in it.


Line a cake tin with aluminum foil or clingfilm - or use one of those tins with a loose bottom. Tip the chocolate biscuitey mixture into the tin and smooth so it is roughly level.


Stick it in the fridge to chill for 4 - 6 hours, or more.


Remove from pan. When chilled and firm, turn the cake out onto a plate.


Melt approximately 6 oz of chocolate, and pour or spread it onto the top of the cake. You may like to use some white chocolate to create a pattern or write a greeting on top.