
Triple Chocolate Mousse Cake
1. For the chocolate cake layer:
2. For the dark chocolate mousse:
3. For the white chocolate mousse:
4. For the chocolate glaze and sauce:
5. For the chocolate crunch:
Chocolate Cake Layer:
Step 1: Preheat over to 325° F.
Step 2: Melt the chocolate. (I chop it up finely and then microwave it in 30-second intervals; chocolate burns really easy though so remember to stir every 30 seconds and keep your eye on it.)
Step 3: Using a tabletop or handheld electric mixer, beat the butter, sugar, and cocoa powder together on medium high speed until smooth, creamy and fluffy, about 3 minutes.
Step 4: Add the eggs, one at a time, until each one disappears into the mix.
Step 5: Pour in the melted chocolate and mix. (Hopefully, by now your chocolate came down in temperature a little. It should feel like a warm bath. If it’s too hot, it might melt the butter, and that’s no good. If it’s too cold, it might re-solidify into little bits when it hits the cold bowl. So, warm. We want it warm.)
Step 6: In a medium bowl, stir together the dry ingredients, which include flour, baking powder, baking soda and salt.
Step 7: Combine the milk and the water and microwave until hot, about 45 seconds. (Like a “too hot” bath.)
Step 8: On low speed, mix dry ingredients into mixing bowl with wet ingredients until MOSTLY combined, and then, with the machine still running, pour in the hot water/milk mixture.
Step 9: Pour it into a 18″ x 13″ sheet pan that’s been first sprayed with nonstick cooking spray and lined with parchment. (You can use any sized sheet pan with high sides — just pour in enough batter to come about halfway up the sides. If you have leftover batter, you can pour it into greased muffin tins, and bake mini cakes as well.)
Step 10: Bake for about 18 minutes.
Step 11: Let the cake cool to room temperature. (Cake layer can be made a day ahead.)
Step 12: Cut a cake circle with each ring mold, regardless of which size you’ve decided to use.
Dark Chocolate Mousse Layer:
Step 1: Sprinkle gelatin evenly over a small bowl with the water and let it sit.
Step 2: In 5 minutes, it’ll have soaked up the liquid and will look gelatinous.
Step 3: Next heat up the milk to a simmer in a small sauce pan. (Stay close so it doesn’t boil all over.)
Step 4: Turn OFF the heat and then scrape the gelatin blob into the hot milk. Swirl the pan around until it’s completely dissolved. (It’ll look like there’s nothing more than milk.)
Step 5: Pour this milk/gelatin concoction over the finely chopped chocolate and let it rest for 2 minutes. (The heat from the milk will melt down the chocolate.)
Step 6: Whisk it up into a smooth pool of goodness. Set it aside and let it cool to lukewarm. (Don’t let it reach room temperature or the gelatin may start to set up.)
Step 7: Now, with a clean whisk, whip the cream. A soft peak is perfect. This texture is easiest to fold into the chocolate.
Step 8: Scoop about a third of the whipped cream into the chocolate. Scrape the sides and bottom of the bowl as you work, gently turning the mix in on itself.
Step 9: Add the rest of the whipped cream, and gently fold that in.
Step 10: Pour the mousse into the waiting molds, filling them about halfway, without dripping on the insides of the molds.
Step 11: Put the whole tray in the freezer while you make the white chocolate mousse.
White Chocolate Mousse Layer
Step 1: Sprinkle gelatin evenly over a small bowl with the water and let it sit.
Step 2: In 5 minutes, it’ll have soaked up the liquid and will look gelatinous.
Step 3: Next heat up the milk to a simmer in a small sauce pan. (Stay close so it doesn’t boil all over.)
Step 4: Turn OFF the heat and then scrape the gelatin blob into the hot milk. Swirl the pan around until it’s completely dissolved. (It’ll look like there’s nothing more than milk.)
Step 5: Pour this milk/gelatin concoction over the finely chopped chocolate and let it rest for 2 minutes. (The heat from the milk will melt down the chocolate.)
Step 6: Whisk it up into a smooth pool of goodness. Set it aside and let it cool to lukewarm. (Don’t let it reach room temperature or the gelatin may start to set up.)
Step 8: Scoop about a third of the whipped cream into the chocolate. Scrape the sides and bottom of the bowl as you work, gently turning the mix in on itself.
Step 9: Add the rest of the whipped cream, and gently fold that in.
Step 10: Pour the mousse into the waiting molds, most of the way up. Leave some space on top, about 1/8″ – 1/4″ for the chocolate glaze. Pop the tray back into the freezer while you make the glaze and garnish.
Garnish:
Step 1: Melt the chocolate in a medium sized bowl by nuking it in a microwave. Start with 30 seconds, stir, then continue with 20 second intervals until it’s completely melted.
Step 2: Add the cereal and stir until completely coated.
Step 3: Spread it all out on a parchment-lined sheet pan, keeping it in little flat clusters. This way, the cereal bits touch each other, and can dry in chunks. Pop it in the fridge to set up.
Note: This keeps in the fridge for weeks. Once the chocolate sets up, you can break this up and keep the pieces in a small plastic container.
Chocolate Sauce/Glaze:
Step 1: Pour the heavy cream, corn syrup and oil into a microwave-proof cup and nuke until almost boiling (you might be able to see it gurgling in the cup), about 45 seconds. (It will look curdled but pay it no mind. Stir it up to blend.)
Step 2: Pour over the chocolate and allow to sit for a minute to melt it all.
Step 3: Whisk everything until completely smooth.
Step 4: Wait until the sauce cools to lukewarm (so it doesn’t melt down the mousse), and carefully pour sauce onto the tops of your molds. It’s going to start setting almost immediately on contact from the cold, so work fast.
Note: You can store this in the fridge for up to a week, but it will firm up. To bring it back to its liquid splendor, microwave it in 30-second intervals and stir between each nuking until it’s saucy.
Step 5: Back into the freezer they go for at least 4 hours, to fully set.
Note: Once set, if you plan to keep them frozen for a while, be sure to wrap the tray very well to keep the cakes from absorbing strange freezer flavors.
To Serve:
Note: The day you want to serve them, you can unmold the number you need. They come out of the rings more cleanly when frozen.
Step 1: Remove from freezer.
Step 2: Roll them around in the palms of your hands for a minutes. The heat helps release them.
Step 3: Treat them like a push-pop, and gently press them out. They have a tendency to slip out and land with a thud on your tray, so go slowly.
Step 4: Keep them uncovered in the fridge while they defrost. It probably takes a couple of hours to defrost something of this size. (Don’t let them sit in the fridge for more than a day. The longer a gelatin-based dessert sits in the fridge, the more rubbery it becomes.)
Step 5: Right when you’re ready to serve, warm the chocolate sauce in the microwave for 30 seconds, give it a stir and pour some in your dish.
Step 6: Carefully place a cake in the center, handling it as little as possible to avoid getting grubby fingerprints all over it.
Step 7: Adorn the top and sides with some crunch pieces. Enjoy!