News of the World - chocolate update

This isn't actually a new recipe - it's an update (and I think an improvement) on the cake from last year's 'Procrastibaking'.  I was asked on Thursday night if I would be able to make a chocolate cake on Friday morning, for a 40th birthday - nothing fancy, just good ol' chocolate cake with chocolate icing.  Sweet.  We had chocolate sauce in the fridge (a la ice cream), so into the cake batter it went.  And the icing.  I wasn't sure whether or not it would make a noticeable difference, but it did.  I tasted one of the crumbs which stuck to the tin and chocolate sauce heaven.  So there you go - squirt a decent amount of salsa chocolata into your next festive masterpiece.  Extra extra...