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6 eggs, separated, yolks and whites reserved
Preheat the oven to 350°F.
Grease and flour a 9" springform pan. Line the bottom of the pan with parchment paper or wax paper. Grease the paper and set aside.
In a mixing bowl, beat the egg yolks on high speed about 5 minutes, or until thick and lemon colored. Add the vanilla. Reduce the speed to low and gradually beat in 1 cup of the sugar. Continue beating until the mixture thickens slightly and doubles in volume, about 5 minutes.
In a small bowl, combine the cake flour, cocoa, and baking powder. Sift 1/3 cup of the flour mixture over the egg yolk mixture and fold it in until combined. Repeat with 1/3 cup measures of the remaining flour mixture until it is all incorporated. Blend in the butter.
In a mixing bowl, beat the egg whites and cream of tartar on high speed until soft peaks form, about 2 minutes. Gradually add the remaining 1/4 cup of sugar to the egg whites, beating on high speed until stiff peaks form.
Gently fold 1 cup of the beaten egg white mixture into the egg yolk mixture to lighten the batter, then fold the whole yolk mixture into the egg white mixture. Pour into the prepared pan.
Bake for 30 to 35 minutes, or until the cake springs back when lightly touched. Cool on a wire rack for 10 minutes. Remove the pan and cool completely.
Cut the cake in half horizontally, forming 2 equal layers. Place one layer on a serving plate and spread with Blackout Cream. (click here for recipe) Top with the remaining cake layer. Frost the top and sides with the remaining Blackout Cream. Sprinkle the cake with the chocolate wafer crumbs.
Poster's Notes:
Posted by Nancy Berry
Nutritional Info Per Serving: N/A
1 teaspoon vanilla extract
1-1/4 cups sugar
1/2 cup cake flour
1/2 cup unsweetened cocoa powder
1 teaspoon baking powder
6 tablespoons unsalted butter, (3/4 stick) melted
1/2 teaspoon cream of tartar
1 recipe Blackout Cream
2 cups crushed chocolate wafer crumbs (about 40 chocolate wafers)
The author writes: "All the bakeries in Brooklyn used to make blackout cake. My father's bakery made the best, of course, and this is his version: chocolate cake, rich chocolate pudding, and chocolate crumb coating. At Bruce's, we use chocolate cake crumbs for the outer coating, but cookie crumbs work well, too. To make the cookie crumbs, break cookies into chunks and place between two pieces of wax paper or wrap them in a clean kitchen towel and roll firmly with a rolling pin. My partner Joel appointed himself the official Blackout Cake Taste-Tester. It's a tough job, but somebody's got to do it."