Refrigerate the opera cake for two hours to set the layers and make it easier to trim. Trim the edges using a sharp knife to reveal the layers.

Preheat the oven to 375°F (190°C) for convection (350°F/177°C for conventional) and grease a 6" square cake pan (or multiple pans as needed for six layers). 2. In a large bowl, combine almond flour, 1 ...

Re-sift cake flour over batter and gently fold in ... as the last glaze. 5. Mango and Pistachio Opera is ready to serve.

Despite its name, the rich and layered treat known as opera cake doesn't actually have much to do with the opera beyond a superficial resemblance.