It's not a hedgehog cake is it Lucy? There are lots of varieties, but this one has copha in it.....

125g copha
1 tablespoon cocoa
250g crushed biscuits
1/2 cup walnuts
1 cup chopped fruit
125g castor sugar
1 egg
vanilla

Place copha, castor sugar, cocoa and egg on low heat. Boil until Bubbling.
Mix in other ingredients. Pour onto grease proof paper in flat tray.

Ice with chocolate, sprinkle chopped nuts and refrigerate until cool and cut into fingers.