ROFL!!! I have some in the fridge as we speak.

I must admit that I'm rather generous as far as the choc topping is concerned - today I used a 250g bag of milk choc bits and 250g of dark choc and melted them together so mine is currently in the fridge with 500g of chocolate on it (sometimes the combination of milk and dark is delisssssh).

I also quite often leave maybe 4 - 5 biccies out of the mix so that it's a bit more caramelly but I guess it depends on your taste and the consistency you prefer.....