Triple Layer Chocolate Mousse Cake Americas Test Kitchen Recipe 385

TRIPLE LAYER CHOCOLATE MOUSSE CAKE

Steps:

• Line three 9-inch cake pans with foil, leaving about a 2-inch overhang on all sides. (See Cook's Note.)
• Add the cookies and sugar to the bowl of a food processor and pulse to fine crumbs. Drizzle in the butter and pulse until the crumbs are completely coated and moistened with the butter. Firmly press the crumb mixture into the bottom of one of the prepared pans; set aside.
• Add the dark chocolate pudding mix to a large bowl and whisk in 2 cups of the heavy cream. Continue whisking until light and fluffy, about 2 minutes. (It's fine if there are still a few granules in the mix; they will dissolve once set.) Pour the pudding mixture on top of the crumb crust and spread until even. Freeze until firm, about 2 hours.
• Meanwhile, clean out the bowl, add the chocolate pudding mix and whisk in 2 cups heavy cream. Continue whisking until light and fluffy, about 2 minutes. Pour into another prepared pan and freeze until firm, about 2 hours.
• Clean out the bowl again, then add the white chocolate pudding mix and whisk in the remaining 2 cups heavy cream. Continue whisking until light and fluffy, about 2 minutes. Pour into the third prepared pan and freeze until firm, about 2 hours.
• When all 3 layers are completely frozen, use the foil to lift out the cakes from the pans. Place the dark chocolate layer crumb-side down on a cake stand or large plate. Top with the chocolate layer and then with the white chocolate layer. Refrigerate until the layers are thawed and the cake is set, about 8 hours and up to overnight.
• Before serving, run a hot knife around the outside of the cake to smooth it and sprinkle the top with the chocolate shavings.

LAYERED CHOCOLATE MOUSSE CAKE

Steps:

• For the brownie: Preheat the oven to 350 degrees F. Spray the bottom of a 9-inch springform pan with nonstick cooking spray.
• Whisk together the flour, cocoa powder and sugar in a medium bowl. Whisk in the milk, butter, vanilla and egg until smooth. Pour the batter into the prepared pan and bake until a knife inserted in the center comes out clean, about 20 minutes. Cool completely on a wire rack, about 30 minutes.
• Unclasp the pan, remove the outer ring and spray it with nonstick cooking spray. Line the ring with a 2 1/2-inch-wide parchment strip, making sure that it sits tightly and smoothly along the sides. Re-clasp the ring to the bottom of the pan with the cake in it.
• For the mousse: Roughly chop 4 tablespoons of the butter and put in a medium microwave-safe bowl. Microwave in 30-second intervals, stirring in between each, until melted, about 1 minute. Stir in 1/4 cup of the cocoa powder until smooth; set aside. Chop the remaining 8 tablespoons butter and put in a medium microwave-safe bowl. Microwave in 30-second intervals, stirring in between each, until melted, about 1 minute. Stir in the remaining 1/2 cup cocoa powder until smooth; set aside.
• Add 1/4 cup of the heavy cream to a small microwave-safe bowl and stir in the gelatin. Let sit for 5 minutes to bloom. Microwave in 30-second intervals, stirring in between each, until the gelatin is dissolved, about 1 minute. Cool to room temperature, about 5 minutes.
• Transfer the gelatin to the bowl of a stand mixer fitted with the whisk attachment and add the sugar, vanilla and remaining 3 3/4 cups heavy cream. Whisk on medium speed until stiff peaks form, 3 to 4 minutes. Divide the whipped cream mixture between 2 large bowls. Fold one bowl of the cocoa powder-butter mixture into each batch of whipped cream mixture and stir until no streaks remain (one bowl will contain dark chocolate mousse and the other will contain light chocolate mousse).
• Spread the dark chocolate mousse on top of the brownie in the springform pan. Use an offset spatula to even out and smooth the top. Spread the light chocolate mousse on top of the dark chocolate mousse and use an offset spatula to even out and smooth the top. Refrigerate until the mousse is set, 3 hours and up to overnight.
• For the ganache: Bring the heavy cream and butter to a boil in a small saucepan over medium-high heat. Put the semisweet chocolate in a large heatproof bowl and pour the hot cream over top. Let it sit for 5 minutes, then stir until smooth and shiny.
• Unclasp the springform pan and remove the parchment paper from the sides of the cake. Use a hot, dry offset spatula to smooth out the sides. Set a rack in a rimmed baking sheet and put the cake on top of the rack. Pour the ganache over the cake and let it drip down over the sides so the entire cake is covered. Swipe once across the top with a clean, large offset spatula to create a smooth top. Refrigerate until set, about 30 minutes.
• Hold a stencil or other tool with holes (such as a doily or a cooling rack) over the cake (do not lay it on the ganache; it will stick) and dust with more cocoa powder to create a decorative pattern. Serve immediately.

TRIPLE LAYER CHOCOLATE MOUSSE CAKE

Steps:

• Make the chocolate mousse: Put the chocolate in a food processor fitted with the metal chopping blade.
• Process for 20 to 30 seconds, until finely ground.
• In a small saucepan, combine the milk, sugar and salt.
• Cook over medium heat, stirring with a wooden spoon, until the sugar dissolves and the milk comes to a boil.
• Remove the pan from the heat.
• With the motor of the food processor running, pour the hot milk through the feed tube.
• Process for 10 to 20 seconds, until the chocolate is completely melted.
• Using a spatula, scrape down the side of the work bowl.
• Add the oil and vanilla extract; process for 5 to 10 seconds, until the mixture is creamy.
• Scrape the chocolate mixture into a large bowl and cool for about 5 minutes, until tepid.
• In a chilled 4-1/2 quart bowl of a heavy-duty electric mixer fitted with the wire whisk attachment, whip the cream until soft mounds barely start to form and the cream is still pourable.
• Do not overwhip the cream.
• Using a large rubber spatula, gently fold one-third of the whipped cream into the tepid chocolate mixture to lighten it.
• Fold in the remaining whipped cream.
• Do not overfold the mousse or the texture will be grainy.
• Cover with plastic wrap and chill for 6 to 8 hours or overnight, until firm.
• Make the cake: Grease three 10-inch round cake pans.
• Cut three 10-inch circles of waxed paer and place in the bottom of each pan.
• Grease the pan well and then flour, tapping out the excess.
• Set aside.
• Place the oven racks two shelves apart.
• Preheat the over to 350 degrees F.
• Sift together the flour, baking soda and salt.
• Set aside.
• Place the coarsely chopped chocolate and the water on top of a double boiler and turn heat to medium-high, whisking occasionally until smooth.
• Remove from the top of the double boiler and cool slightly.
• Meanwhile, in a 4-1/2 quart bowl of a heavy-duty electric mixer using the paddle attachment, cream together the butter and the sugars.
• Add the vanilla.
• Add the eggs one by one, mixing on medium speed until blended.
• Using a rubber spatula, scrape down the sides of the bowl.
• With the mixer at its lowest speed, add half of the dry ingredients and the half of the buttermilk.
• When blended, add the remaining buttermilk and the chocolate mixture.
• Mix until blended then add the remaining dry ingredients.
• Mix on medium speed just until blended and the flour lumps disappear.
• Divide evenly among the three prepared pans and smooth the tops with an offset metal spatula.
• Bake for 28 to 32 minutes, or until a toothpick comes out clean.
• Remove the pans from the oven and place on wire cooling racks.
• Cool for 15 minutes and invert.
• Peel off the waxed paper and cool completely.
• Begin to assemble the cake: Place a dab of chocolate mousse and then a layer of the cooled cake on a 10-inch cardboard cake circle or the circular insert of a tart pan.
• Using a large rubber spatula, place about one-quarter of the chilled chocolate mousse on top of the first cake layer.
• Using a metal cake spatula, spread the mousse evenly not quite to the sides of the cake.
• There should be slightly less than one-half inch of mousse on top of the cake.
• Place the second cake layer on top and repeat the mousse layer.
• Place the third cake layer on top, then spread the remaining chocolate mousse over the top and sides of the cake, coating smoothly and evenly.
• Place the cake in the freezer for a minimum of four hours.
• Make the ganache glaze: Place the coarsely chopped chocolate in a food processor fitted with the metal chopping blade.
• Process for 20 to 30 seconds, until finely ground.
• Place in a large bowl.
• In a medium pan, scald the heavy cream and pour over the chocolate.
• Using a metal whisk, gently stir until smooth and melted.
• Continue stirring until the ganache is room temperature or just slightly warmer.
• Glaze and garnish the cake: Place the Oreos in a food processor fitted with the metal chopping blade.
• Process for 20 to 30 seconds, until finely ground.
• Remove the cake from the freezer and place on a wire rack that has been set over aluminum foil or a sheet pan.
• Slowly pour the ganache over the top of the cake, smoothing with a large metal cake spatula.
• When the top has been coated, slowly pour the ganache around the sides of the cake so it drips down and coats the sides.
• Use the spatula to spread the ganache evenly over the sides of the cake.
• When completely coated with the ganache, scoop the Oreo crumbs with your hand and press them onto the sides of the cake, coating its entirety.
• Refrigerate until ready to serve.

TRIPLE LAYER CHOCOLATE MOUSSE

Steps:

• SOFT MOUSSE: Melt chocolate over simmering water of a water bath.
• Whip egg yolks with 1/3 cup powdered sugar until pale and airy, place whipped yolks in medium sized bowl. Add warm melted chocolate and fold until just mixed. Wash bowl and wipe thoroughly.
• Dissolve 1/3 cup granulated sugar and 1/4 cup water in small pot, bring to a boil, cook to 230 degrees on a candy thermometer.
• While sugar is boiling slowly whip whites to soft peak. When sugar is ready, slowly pour into whites while beating at a medium speed in a steady stream. Continue to whip until stiff peaks form. Spoon whites on top of yolks but do not fold.
• Whip cream and 1/3 cup powdered sugar until medium stiff peak, now fold in whites until just mixed. Add cream and fold until incorporated. Do not over fold. Store in refrigerator until ready to use (should be used as soon as possible).
• SOLID CHOCOLATE MOUSSE: Melt chocolate hot, over double broiler (do not burn chocolate), heat until it is warm to the touch. Whip cream until very soft peaks form (lines show in slightly whipped cream).
• Very, very quickly add chocolate to cream and fold in, mixture may look broken but keep folding until everything is smooth, but do not overmix. Place in bowl, cover and refrigerate until set.
• TO SERVE: Place the two mousses in composition to contrast each other. Garnish with chocolate cool whip.