I am looking for a recipe for white chocolate biscuit cake please.
Have you tried googling it?
You'll get the prince William version which uses milk chocolate....just sub white chocolate instead.
a quick google search brought up these:
I have a great recipe for chocolate biscuit cake, but it only really works with a certain amount of dark chocolate. Because it's a mixture of biscuit, marshmallow, golden syrup, chocolate, fruit etc. white chocolate would make it way too sweet and sickly.
The one I use is on www.odlums.ie