Devils Food Nutella Cake

DEVIL'S FOOD CAKE

Steps:

• For the cake: Preheat the oven to 350 degrees F. Line the bottoms of both cake pans with parchment paper and butter the sides.
• Put the cocoa and 1/2 cup dark brown sugar into a bowl with a bit of space to spare, and pour in the boiling water. Whisk to mix, then set aside.
• Cream the butter and superfine sugar together, beating well until pale and fluffy; I find this easiest with a free-standing mixer, but by hand wouldn't kill you.
• While this is going on - or as soon as you stop if you're mixing by hand - stir the flour, baking powder and baking soda together in another bowl, and set aside for a moment.
• Dribble in the vanilla extract into the creamed butter and sugar - mixing all the while - and then drop in an egg, quickly followed by a scoopful of the flour mixture, then add the second egg.
• Keep mixing and incorporate the rest of the dried ingredients for the cake then finally mix and fold in the cocoa mixture, scraping its bowl out well with a spatula. Divide this fabulously chocolatey batter between the two prepared pans and put in the oven for about 30 minutes, or until a cake tester comes out clean. Take the pans out and put them on a wire rack for 5 to 10 minutes, before turning the cakes out to cool.
• But as soon as the cakes are in the oven, get started on your frosting: put the water, 2 tablespoons dark brown sugar and 1 1/2 sticks butter in a pan over low heat to melt.
• When this mixture begins to bubble, take the pan off the heat and add the chopped chocolate, swirling the pan so that all the chocolate is hit with heat, then leave for a minute to melt before whisking till smooth and glossy.
• Let it stand for about 1 hour, whisking now and again - when you're passing the pan - by which time the cakes will be cooled, and ready for the frosting.
• Set one of the cooled cakes, with its top side down, on a cake stand or plate, and spread about a third of the frosting, then top with the second cake, regular way up, and spread the remaining frosting over the top and sides, swirling away with your spatula. You can go for a smooth look, but I never do and probably couldn't.

DEVIL'S FOOD NUTELLA CAKE

Steps:

• Directions Follow the directions on the back of the cake mix, but only use half of the oil called for*. Bake as directed for a greased bundt pan. Let cake cool completely before inverting onto a wire rack. Using a chopstick of the end of a slender wooden spoon, poke holes all over the top of the cake. Be sure not to poke all the way through the cake. Set aside. To a medium sauce pan, add the sweetened condensed milk and Nutella. Set over low heat and stir until just blended and heated through. Immediately pour mixture over the cake**. Sprinkle half of the crushed candy bars on top and let set for 30 mins***. Just before serving, transfer to a serving plate, top with thawed frozen whipped topping, and sprinkle with remaining crushed candy bar.

DEVIL'S FOOD CAKE WITH HAZELNUT PRALINE

Steps:

• Heat the oven to 200 degrees Celsius (nonfan)/375 degrees Fahrenheit. Line the bottom of 2 (20-centimeter/8-inch) cake pans (tins) with a removable base with parchment paper and grease the sides. Alternatively, grease the bottoms and sides of 2 (20-centimeter/8-inch) regular cake pans, line with parchment, and grease the parchment.
• In a large bowl, whisk together cocoa, flour, baking powder, baking soda, salt and sugars. In a separate bowl, add the oil, eggs and kefir, and whisk just to combine. Add to the dry mixture and use a spatula to gently fold through. Add the 3/4 cup plus 3 tablespoons/220 grams hot coffee and mix gently to combine. It'll look very runny at first, but will soon come together into a glossy, pourable batter.
• Divide the batter evenly between the two cake pans, about 21 ounces/600 grams per pan. Bake for 30 minutes or until a skewer inserted into the middle comes out clean. Set aside to cool for about 30 minutes, then slide a butter knife along the sides to help release the cake. Brush the tops lightly with the remaining 1 tablespoon/14 grams extra coffee (discard any extra).
• Invert one cake onto a board, remove the parchment, then invert it again onto a cake stand or the platter you intend to serve it on (domed side up now). Invert the other cake onto a board (don't remove the paper). Invert it again, onto a plate, so that it's paper side down. (This will help prevent it from sticking.) Set both cakes aside to cool completely.
• Make the praline: With the oven still at 200 degrees Celsius/375 degrees Fahrenheit, spread the hazelnuts onto a parchment-lined medium baking sheet (tray) and bake for 12 to 15 minutes, or until deeply golden, shaking the pan halfway through baking. Set aside, keeping the tray and parchment paper. You'll use them again later.
• Place a large saucepan over a medium-high heat and, once quite hot, sprinkle in a third of the caster sugar to cover the base. It should immediately start to melt at the sides but not brown too quickly. Swirl the sugar in the pan a little, then add another third of the sugar, allowing it to melt a little before adding the remaining third. Turn the heat down to medium and cook until the sugar is an amber caramel, stirring with a spatula just a couple times (but not much more). Add the hazelnuts and 1/4 teaspoon salt, stirring to coat, then quickly transfer the mixture to your parchment-lined tray and leave to cool completely.
• Once cool, roughly break apart the praline and add it to a food processor. Pulse a few times until you have very coarse crumbs, then measure out about 1/2 cup/75 grams of the mixture and transfer to a bowl. Blitz the remaining mixture in the food processor for about 5 minutes or until it turns into the consistency of a smooth nut butter, stopping to scrape the inside of the bowl as necessary. Transfer this to a separate bowl.
• Make the mascarpone cream: Add all the ingredients to a stand mixer and beat on medium-high speed for 1 1/2 to 2 minutes, or until you have medium peaks. Refrigerate if not assembling right away (you want it nice and cold).
• When ready to assemble, top the cake on your cake stand with half the cream mixture. Spoon over about 2 tablespoons of the smooth praline and gently swirl it through the cream with your spatula. Top with another 2 tablespoons of the praline, this time without swirling. Sprinkle with half the praline crumble. Carefully invert the other cake on top now, removing the paper. Top with the remaining cream and repeat the same process with the smooth praline and praline crumble. Serve right away, or refrigerate overnight to firm up the cream before serving. (The cake will keep refrigerated for up to 3 days.)