Canada has no cookie like this. Tim Tams are deliciousness incarnate in two syllables. Two layers of cookie surround a creamy/icing middle, then the whole thing is dipped in chocolate. Good quality chocolate, even.
Better still, this cookie can be made even more delicious through the technique, "The Tim Tam Slam". The lovely Dave will demonstrate how this is done.
Step 1) Assemble hot drink of choice, and one or more Tim Tams. Ideally, the cookies should be the double-coat variety, as that ensures less mess for the coming steps. Ensure the drink is not hot enough to scald, and that it is filled to near the top of the mug.
Step 2) Bite off both ends of the cookie.
Step 3) Insert one end of the cookie into the mug, making contact with the drink.
Step 4) Suck drink through cookie -- like a straw -- until cookie is fully moistened. This usually only takes a second or two, and practise is required to time it perfectly.
Step 5) Pop delicious, caffienated, gooey chocolate cookie-ooze in your mouth. Bliss!
Hopefully, Canadian importers will gain enough sense to import this southern-hemisphere wonder; but until then, I'm scheming a way to get them to Canada. I love you, Tim Tam.