Mini marshmallows, homemade or store bought, for decoration, about 3-4 cups
Instructions
1. Adjust oven rack to middle position and heat oven to 350F. Grease and flour two 8-inch cake pans set aside
2. Grind graham crackers, flour, baking powder, and salt in food processor to fine crumbs. Whisk milk and vanilla in measuring cup.
3. In standing mixer fitted with paddle attachment, combine sugar, and butter, beat on medium-high speed, until light fluffy, about 2-3 minutes. Beat in egg yolks, one at a time, until combined. Reduce speed to low and add graham cracker mixture in 3 additions, alternating with 2 additions of milk mixture, until incorporated.
4. Using clean bowl and beaters, beat egg whites on medium-high speed until soft peaks form, about 2 minutes. Whisk one-third of whites into batter, then fold in remaining whites until combined with no white streaks. Divide batter into prepared pans and bake until toothpick inserted in center comes out clean, 20 to 25 minutes. Cool cakes in pans 10 minutes, then turn out onto rack. Cool completely, about 2 hours.
Chocolate Ganache
Ingredients
1 tablespoon corn syrup
1 tablespoon instant espresso powder
1/8 teaspoon fine sea salt
6 ounces heavy cream
12 ounces dark chocolate, chopped into small pieces
1/2 teaspoon pure vanilla extract
Directions
1. Combine corn syrup, espresso powder, salt and heavy cream in a small saucepan. Bring to a simmer on medium-low heat; add chocolate and stir until smooth. Remove from heat, add the vanilla extract and stir to combine. Cool to room temperature, 45 minutes. (For faster cooling, pour ganache into a medium bowl.)
Marshmallow Frosting
Ingredients
8 large egg whites
2 cups sugar
1/2 teaspoon cream of tartar
2 teaspoons pure vanilla extract
Directions
1. Place egg whites, sugar, and cream of tartar in the heatproof bowl of a stand mixer. Set over a saucepan with simmering water. Whisk constantly until sugar is dissolved and whites are warm to the touch, 3-4 minutes.
2. Remove bowl from heat, wipe dry and attached to stand mixer fitted with whisk attachment. Beat on low speed for 1 minute and gradually increasing to high. Beat until stiff, glossy peaks form, 5-7 minutes. Add vanilla, and mix until combined. Use immediately.
Assembly
1. Line an 8-inch cake pan with plastic wrap with ample overhang, about 6 inches. Cut each cake in half horizontally. Place one cake layer on the bottom of prepared cake pan, spread approximately 1/3 ganache over cake layer and top with another layer. Repeat with ganache and cake layers until top with the 4th cake layer. Wrap cake with overlap plastic wrap and refrigerate for 30 minutes.
2. Remove cake from refrigerator, unwrap cake and place it on a serving platter or cake stand. Spread or pipe frosting on top and side of cake. Decorate with mini marshmallows. Using a kitchen torch, toast frosting and marshmallows to desire doneness.
Originally Submitted
10/17/2012
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