Coconut: good. Chocolate: good. Chocolate-rolled, coconut-covered sponge cake: great. The exact origins are under debate but the cake is named after Lord Lamington, Governor of Qld 100 years ago. Who doesn’t love a good lamington? Whether it’s creamed and jammed shut or left plain and simple, the lamington is a national treasure. And, like the Queen’s Birthday, ANZAC Day and Christmas, it even has a day to prove it: July 21 is National Lamington Day, when the country stops (okay, should stop) to savour the long history of this tasty treat. The exact origins are under debate but the cake...