Tim Tams are the Australia version of the Penguin biscuit. I think they are well tasty and better in lots of ways than the British Penguin: they have a slightly different cream filling, thicker biscuit and more chocolate.
A few years ago I was introduced to the Tim Tam Slam by a couple of Australian friends, and my life was transformed. So, in need of a pick me up, today I did a Tim Tam Slam with a toffee flavoured Penguin and a cup of tea; a heartily recommended variation of the Tim Tam Slam.
A Tim Tam Slam is not very lady-like, but it does taste amazing!