Also known as St Phanourios's Cake, and, as it will become in my non-religious household, Greek Walnut Cake. The origins of the cake is explained in the recipe at Leites Culinaria, and it's worth following the link on that page to read the author's personal quest with the cake.
In my pleasure at finding a new recipe, I completely failed to notice that the cake didn't contain any eggs, until I had mixed the liquid ingredients. Too late to go back at that point! I put the cake into the oven with some trepidation, and if I had any religious leanings I might have been praying to St Phanourios that I hadn't lost my senses at that point. My only previous encounter with a cake with no eggs was a disaster that had to be thrown away, and if you've seen some of the disasters which we've still eaten, you'll realise how bad it must have been!