Chocolate Mousse Torte

To make the sour cream cake: Preheat the oven to 350 degrees. Butter
and flour an 8- or 9-inch cake pan and set aside. Sift together the
cake flour, baking soda, baking powder and salt and set aside. In a
large bowl, cream the butter with the sugar until light and fluffy,
then beat in the egg yolks and the vanilla. In a measuring jug, whisk
the sour cream and the milk together until smooth. Add the dry
ingredients and the sour cream mixture alternately to the creamed
butter mixture, ending with the milk mixture. Fold in the egg whites,
then pour into the prepared pan. Bake on the center rack of the oven
for 20 to 25 minutes, or until a toothpick inserted into the center
comes out clean. Cool on a rack for 5 minutes, then unmold onto a
plate and continue cooling to room temperature. Wrap with plastic
wrap and refrigerate until you are ready to finish the cake. To make
the almond praline: Preheat the oven to 350 degrees. In a small
saucepan, combine the sugar and the water over low heat. Stir
together until the sugar has melted, then increase the heat to high
and bring the mixture to a boil. Boil for 1 minute, then remove from
the heat. In a mixing bowl, combine the sliced almonds with the sugar
syrup and toss until well coated. With a slotted spoon, transfer the
nuts to a lightly-oiled baking sheet and bake until golden, about 10
to 15 minutes. Let the nuts cool and break them apart. The nuts
should remain whole but be coated with a sugary golden coating. To
make the chocolate mousse: Chill a bowl and the beaters of an
electric mixer in the freezer for 1 hour. Meanwhile, in a double
boiler, melt the chocolates over simmering water and stir in the
cinnamon. In the frozen mixing bowl, whip the cream to soft peaks (do
not overbeat). Remove the double boiler insert holding the melted
chocolate from the pan. With a rubber spatula, fold 1/4 of the
whipped cream into the chocolate. Fold the remaining cold cream into
the chocolate mixture, 1/4 at a time, mixing it as little as possible
just to get it all incorporated. When ready to assemble the torte,
cut the sour cream cake in half horizontally with a long sharp knife.
Place 1 layer of the cake on a serving plate and spread a thick layer
of mousse on top of it. Sandwich the second layer over the top and
spread a mounded layer of mouse over the top. Spread a layer of
mousse around the edges, covering the cake completely. Gently press
the sugared almonds into the mousse evenly around the edges of the
cake. Using a very sharp vegetable peeler, shave long thick curls of
chocolate over the top of the cake and serve immediately. This recipe
yields ?? servings.