Oooh, ooooh, Opera Cake! - Sizin Portal

Oooh, ooooh, Opera Cake!

Wednesday, July 2, 2008


Daring Bakers time again! I was pretty excited when the theme for this month was announced: Opera Cake! As you might be able to tell from my photos, I didn't really have much of an idea what it should look like, so I decided to just go my own way on that. It has four, or five components:

-nutty meringue-like cake layers
-syrup to moisten the cake layers

While normally done in chocolate versions, we were asked to keep things light and spring-timey, and we were given recipes for almond cake layers, a neutral buttercream and a white chocolate mousse and glaze. I decided early on that I'd go with raspberries and pistachio, so pistachio-almond cake layers, a simple vanilla syrup, a raspberry buttercream, and a white chocolate mousse. I opted to skip the glaze - I feared it would make the cake overly sweet, and besides, I don't trust my frosting skills enough to pour a smooth glaze. (Oh, we're supposed to be... daring? Sorry.) I added some whole raspberries for a nice, fresh and fruity touch.


So. The cake layers! I used about 150 g of pistachios, and 75 g blanched almonds. I ground them together in my almond grinder (which is technically my neighbor's, I still haven't returned it...) and then proceeded with the recipe. I used round springform pans (as I didn't have a rectangular pan of a size that would work here), but... well, I had a bit of a problem. I was aiming for three cake layers, but I guess I didn't estimate well enough because one ended up much thicker than the others. I did keep it in the oven for longer, but when I went to assemble the cake, it turned out to be almost completely uncooked in the center. Oops! So, my cake only has two layers. Never mind...


Syrup. I actually didn't make this, as I had some vanilla syrup in the fridge from previous experiments.

Buttercream. I was a bit scared, because people in the forums had said that they'd had problems with this. I was in fact so scared that I turned to my own buttercream recipe, adapted from Rose Levy Berenbaum, instead. I didn't have quite enough unsalted butter at hand, so instead of the 225 g I used in that recipe last time, I only used about 185. No difference as far as I can tell, though. And I added cold-pressed raspberry extract rather than raspberry pur�e - and, the flavor is at least as good as when I used actual raspberries. Go figure! I did add a smidge of color as well, raspberry buttercream has to be pink, right?


On to the mousse. Where I again, didn't trust the recipe. I've tried the "fold melted chocolate into whipped cream" before, but I like my mousses to be a bit sturdier than those... So - I went for a slightly different approach: I chopped about 200 g of white chocolate finely and put in a bowl. I then heated 300 ml of cream, and poured it on top of the chocolate. I stirred it all together until the chocolate was completely melted and then I put it in the fridge overnight. Next day, on the day of cake assembly, I whipped it like you would any whipping cream, and it turned into a beautiful, thick, silky mousse. (This is a great method for making cake filling actually - it works with pretty much any chocolate, and I've used melted candy before, very yummy. But you MUST leave it to cool overnight.)


And no glaze. So for assembly, I moistened my cake layers, covered the first layer with raspberry buttercream and raspberries, placed the second layer on top, covered it with more buttercream and then frosted the sides as well. I refrigerated it until it was really firm, and then used the white chocolate mousse all over the cake. A final touch: a sprinkling of pistachios.

This cake was a huge hit! I served it for my birthday party and everyone really loved it. I personally am not a big fan of buttercream in cakes, I find it too stiff and well, too buttery. But the whole raspberries lightened things up, and kept the cake from being too sweet. And the white chocolate mousse was delicious!


You can find the recipes here, the blogroll here, and the discussion forums - open to everyone! - here. The four hosts this month was Ivonne of Creampuffs in Venice, Lis of La Mia Cucina, Fran of Apples Peaches Pumpkin Pie and Shia of Whiskful.

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