I can't quite remember when was the first time I heard of this French classic. What I do remember is the first time I saw it on a TV show (MKR Australia) where it was so beautifully presented and just blew me away. And that's also when I finally decided to re-create those beautiful slices of gateau that I saw on TV. But this is no ordinary gateau, it has quite a few elements to it which have to be prepared separately and assembled towards the end.
Gateau opera, in a nutshell, is a chocolate and coffee cake. It consists of three main components: A joconde sponge, or almond sponge, layers of coffee buttercream and a rich and velvety chocolate ganache. I do find myself to be quite particular about how the things I bake look on the plate these days and what I always do is a quick google image search to find some inspiration. Sadly 90% of what I saw (or more) simply did not fascinate me. And having spent some time researching the recipes, I decided to change the recipe slightly in an attempt to produce a better looking cake. Normally, the recipe would require a coffee syrup to be brushed onto the sponge layers but I find that doing this would produce a sort of dirty looking sponge due to the colour from the coffee powder. I substituted the coffee powder with rum instead, which in my opinion never goes wrong with chocolate anyway, and best of all it's colourless so I could preserve the natural golden colour of the sponge. The second thing that I changed was the flavour of the chocolate ganache, if you've read my previous entries you'd have known that I am now a big fan of earl grey and chocolate, and so I decided to add some depth of flavour to my ganache by infusing the cream with some earl grey. Lastly, most recipes call for the use of chocolate ganache (same thing used in the layering of the cake) for the top. Being particular about presentation as always, I decided to go with a more glossy chocolate glacage instead. That way I would get a better finish and produce a shiny surface at the top, like this:

This was also my first time piping words and drawing treble clefts on a cake. Some turned out better than the other.