BLACKOUT CHOCOLATE RECIPES

Steps:

• Arrange a rack in center of oven; preheat to 350°. Line two 8x2"-deep round cake pans with parchment paper. Grease with butter, then dust with cocoa powder, tapping out excess.
• Sift flour, baking soda, baking powder, and remaining ¾ cup cocoa powder into a medium bowl, then whisk to combine. Whisk egg, egg yolk, brown sugar, sour cream, oil, vanilla, salt, and ¾ cup hot water in a large bowl until smooth. Whisk in dry ingredients until just combined.
• Divide batter between prepared pans. Bake cake until a tester inserted into the center comes out clean, 25–35 minutes. Transfer pans to a wire rack; let cake cool completely in pan. Invert onto a plate, then invert again.
• Do Ahead: Cake can be baked 2 days ahead. Store tightly wrapped at room temperature.
• Whisk cocoa powder and cornstarch in a large saucepan. Whisk in cream until smooth and no lumps remain. Add egg yolks, milk, brown sugar, and salt; whisk to combine. Bring to a boil over medium-high heat, whisking occasionally, then reduce heat to low. Continue to cook, whisking, until thick and smooth, 1–2 minutes.
• Remove from heat and add chocolate and vanilla, stirring until chocolate is melted and mixture is smooth. Strain through a fine-mesh sieve into a medium bowl. Cover with plastic wrap, pressing directly onto surface of hot pudding to prevent a skin from forming. Chill until cold, at least 2 hours.
• Using a serrated knife and sawing in long, even strokes, carefully halve cakes lengthwise. Set aside the 3 prettiest layers for assembly. Crumble remaining layer with your fingers into fine crumbs (or push through a wire rack set inside a rimmed baking sheet). Place 1 layer, cut side up, on a platter or cake stand.
• Remove plastic from chilled pudding and vigorously whisk until smooth. Using a rubber spatula, spread half of pudding over cake layer on stand, spreading to edges. Top with another cake layer, cut side down, and spread remaining pudding over cake. Top with third cake layer cut side down (leave top bare). Chill cake 1 hour and up to 8 to let pudding firm up.
• Do Ahead: Pudding can be made 1 day ahead. Keep chilled.
• Bring cream, syrup, and salt to a boil in a large saucepan over medium-high heat. Remove from heat and stir in chocolate, sour cream, and butter. Let sit, stirring occasionally, until chocolate and butter are melted and mixture is smooth and no streaks of white remain. Transfer to a medium bowl. Let frosting sit at room temperature, stirring every 30 minutes or so, until thickened and spreadable (it will look like a broken chocolate sauce at first, but magically, about 1½ hours later, it will start to thicken). Stir until smooth. (If your kitchen is warmer than 72°, chill frosting 5 minutes. Stir to combine cooler outer edges with warmer center, then chill another 5 minutes. It should be the consistency of sour cream; if not, chill another 5 minutes and stir.)
• Spread frosting all over top and sides of chilled cake. The frosting on top should be as smooth and level as possible, but it’s okay if the sides look messy; the crumbs will hide any mistakes you make.
• Place cake stand on a sheet tray. Take a handful of cake crumbs and press into sides of cake. Repeat, turning cake as you go, to completely cover sides in crumbs. Sprinkle crumbs on outside edges of top layer.
• Do Ahead: Cake can be assembled 1 day ahead. Chill uncovered.

Steps:

• Preheat the oven to 375 degrees F.
• Butter and lightly flour two 8-inch round cake pans.
• Make the cake: Place the cocoa in a small bowl and whisk in the boiling water to form a paste.
• Combine the chocolate and milk in a small saucepan over medium heat.
• Stir frequently until the chocolate melts, about 3 minutes.
• Remove from heat.
• Whisk a small amount of the hot chocolate milk into the cocoa paste to warm it.
• Whisk the cocoa mixture into the milk mixture.
• Return the pan to medium heat an stir for 1 minute.
• Remove and set aside to cool until tepid.
• In the bowl of a mixer, cream the butter and sugar together.
• Beat in the egg yolks, one at a time, and add the vanilla.
• Slowly stir in the chocolate mixture.
• Combine the flour, baking powder, baking soda and salt.
• Using a spatula or a wooden spoon, slowly add the flour mixture to the chocolate mixture.
• Fold until just mixed.
• In another bowl, whisk the egg whites until soft peaks form.
• Using a rubber spatula, gently fold the egg whites into the batter.
• Divide the batter between the prepared pans.
• Bake until a toothpick inserted in the center of a cakes comes out clean, about 45 minutes.
• Cool the cakes in the pans on a rack for 15 minutes.
• Gently remove the cakes from the pans and continue to cool.
• While the cake is baking, make the filling: Combine the cocoa and boiling water in a small saucepan over low heat.
• Stir in the sugar and chocolate.
• Add the dissolved cornstarch paste and salt to the pan and bring to a boil, stirring constantly.
• Boil for 1 minute.
• Remove the pan from the heat and whisk in the vanilla and butter.
• Transfer the mixture to a bowl, cover, and refrigerate until cool.
• Make the frosting: Melt the chocolate in a double boiler over hot, not simmering, water, stirring until smooth.
• Remove the top of the double boiler from the heat and whisk in the butter, 1 tablespoon at a time.
• Return the top to the hat, if necessary, to melt the butter.
• Whisk in the hot water all at once and whisk until smooth.
• Whisk in the corn syrup and vanilla.
• Cover and refrigerate for up to 15 minutes prior to using.
• Assemble the cake: Use a sharp serrated knife to slice each cake layer horizontally in half to form 4 layers.
• Set 1 layer aside.
• Place 1 layer on a cake round or plate.
• Generously swath the layer with 1/3 of the filling.
• Add the second layer and repeat.
• Set the third layer on top.
• Quickly apply a layer of frosting to the top and the sides of the cake.
• Refrigerate for 10 minutes.
• Meanwhile, crumble the remaining cake layer.
• Apply the remaining frosting to the cake.
• Sprinkle it liberally with the cake crumbs.
• Serve the cake within 24 hours, store in a cool place.
• Note: The filling ingredients make for a very runny filling, which is how a real Ebinger's cake should be.
• For those who desire a less syrupy consistency, they can stir in an additional 1 to 2 tablespoons of cornstarch.