The opera is one of my favourite patisserie, I’ve made it a lot of times on the blog and when this season’s blackberries were early I knew I wanted to use them in a layered gateau like this. In my head I had an image of the finished dessert and it turned out just like I imagined, the striking purple colour of the berries shone through in the creme au beurre and the contrast against the dark chocolate ganache and pale joconde sponge helped to create a stunning cake.
