S'mores Cake
 
Prep time
Cook time
Total time
 
Three layers of golden cake, marshmallow frosting and chocolate ganache.
Author:
Serves: 12-15
Ingredients
For the Cake:
  • 1 cup room temperature unsalted butter, plus extra for greasing the pans
  • 2¼ cups all-purpose flour
  • ⅓ cup cornstarch
  • 2 teaspoons ground cinnamon
  • 4½ teaspoons baking powder
  • ½ teaspoon salt
  • 1¾ cups superfine sugar (I used granulated sugar)
  • 2 tsp vanilla extract
  • 4 medium eggs, lightly beaten
  • 1¼ cups whole milk
For the Chocolate Ganache:
  • 3oz dark chocolate, finely chopped (I used semisweet chocolate chips)
  • ½ cup heavy cream
  • 3 tsp light brown sugar
For the Swiss Meringue:
  • ⅔ cup egg whites (about 4 large eggs)
  • 2 cups superfine sugar (I used granulated sugar, which didn't end up dissolving as nicely as superfine would have, but it worked well enough)
  • ½ tsp cream of tartar
Instructions
  1. Preheat the oven to 350 degrees F, then grease and line three 8 or 9-inch cake pans (I used 9-inch). I highly recommend cutting out circles of parchment and fitting them into the insides of your cake pan, then greasing the whole thing with butter. This will allow your cake to pop out of the tins much easier. Set them aside.
  2. Whisk together your flour, cornstarch, cinnamon, baking powder and salt and set aside. Put your room temperature butter in the bowl of your electric mixer and beat on medium-high until smooth and fluffy, at least three minutes, then add in the sugar and beat again until light and fluffy, at least another three minutes. Add in the vanilla and mix to combine. With the mixer on medium speed, add the eggs, a little at a time, beating until fully combined before adding more. With the mixer on low, add the flour mixture in three additions, alternating with the milk, starting and finishing with the flour.
  3. Divide the batter evenly among the prepared pans and bake for 25-30 minutes or until the cake is golden brown and springs back when lightly touched. I used 9-inch pans, so mine only took about 25 minutes. Let the cakes cool in the pans for 10 minutes before turning onto a wire rack to cool completely, or place them in the fridge to speed up the process, as I did.
  4. Now you can make the ganache. Place the chocolate in a heatproof bowl, then heat the combined cream and sugar in a small sauce pan over medium heat and bring to a boil. Remove the cream from the heat as soon as it starts to boil and pour it over the chocolate, stirring with a spoon until the chocolate has melted. Stir until smooth. Allow to cool until slightly thickened, but not totally set. When ready to use, beat the ganache with a spoon or whisk until thickened fully. Spread the ganache on two of the cake layers (you can level the cake layers slightly so they are perfectly flat, if you like) and set aside while you make the Swiss meringue.
  5. Put the egg whites, sugar, and cream of tartar in a heatproof bowl set over a pan of gently simmering water, and whisk constantly until the sugar has dissolved and the egg whites are warm to the touch. This will take at least 10-15 minutes and require a lot of whisking. My arm hurt when I was done and the sugar still didn't fully dissolve, as apparently superfine sugar is really a thing and it probably would have worked really well. Having said that, the frosting was still delicious and I was still happy with it, but it will take some elbow grease.
  6. Remove the bowl from the heat and, using an electric mixer, beat until the meringue forms stiff glossy peaks. When you have made the meringue, you need to work with it fairly quickly. Don’t let it stand or it will firm up too much to spread easily.
  7. To assemble the cake, put the first cake layer topped with chocolate onto a cake stand or serving plate and spread with a thin layer of the meringue. Repeat with the second chocolate-topped cake layer and finish with the final layer. Take the remaining meringue and spread across the top and sides of the cake—this doesn’t have to look perfect, as any imperfections will just add to the marshmallow effect.
  8. To finish the cake, take a blowtorch and lightly torch the meringue until it is golden. I'm not sure if there would be an alternative to the culinary torch, as you can't put this frosting in the oven, but torches are relatively inexpensive now and super fun to use in the kitchen, so I highly recommend purchasing one. This cake will keep well in the fridge, covered, for 24 hours and then leftovers will keep for a couple of days.
Adapted From
Recipe by The Crepes of Wrath at http://www.thecrepesofwrath.com/2013/09/23/smores-cake/