SHELL CHOCOLATE SYRUP RECIPES

Steps:

• Make the cake: Prepare the cake mix as the label directs for a 9-by-13-inch cake. Bake; cool slightly in the pan, then invert onto a rack to cool completely.
• Clean out the cake pan and line it with plastic wrap. Cut the cake in half lengthwise, then in thirds crosswise to make 6 rectangles. Using a serrated knife, slice each rectangle in half to make two layers. Arrange half of the pieces snugly in the cake pan. Crumble the remaining pieces and press tightly into 6 small balls; arrange 1 cake ball in the center of each cake rectangle in the pan.
• Make the mousse: Heat the chocolate, butter, coffee and 1/4 cup water in a heatproof bowl set over a saucepan of simmering water (do not let the bowl touch the water), stirring, until melted. Remove the bowl from the pan; stir until cool. Reserve the simmering water. Fill a large bowl with ice water.
• Whisk the egg yolks, 1 1/2 cups sugar and 2 tablespoons water in a separate large heatproof bowl. Set the bowl over the saucepan of simmering water and whisk until pale yellow, 6 to 8 minutes. Add the chocolate-coffee mixture and the vanilla and whisk until combined, about 2 minutes. Remove the bowl from the pan and set in the bowl of ice water; whisk until slightly cool but not thick, about 4 minutes.
• Beat the egg whites and salt in a bowl with a mixer until foamy. Add 2 tablespoons sugar and beat until almost stiff; gently fold into the chocolate-yolk mixture to make a dark chocolate mousse. Spread 5 cups over the cake and cake balls. Freeze until firm on top, about 30 minutes.
• Beat the heavy cream and the remaining 4 tablespoons sugar until soft peaks form; fold into the remaining mousse. Remove the cake from the freezer; spread with the light chocolate mousse, cover with plastic wrap and freeze until firm, at least 6 hours or overnight.
• Make the chocolate shell: Stir the chocolate, heavy cream and 4 tablespoons corn syrup in a heatproof bowl set over a saucepan of simmering water (do not let the bowl touch the water) until melted. A spoonful at a time, spread half of the shell mixture over the frozen mousse. Return to the freezer.
• Make the chocolate sauce: Add the remaining 1 tablespoon corn syrup and the butter to the remaining chocolate shell mixture. Microwave 30 seconds, then stir until glossy.
• To serve the cake, beat the heavy cream with a mixer until foamy. Add the sugar and beat until soft peaks form. Remove the cake from the freezer; invert onto a baking sheet and unmold, then invert again onto a platter, chocolate shell-side up.
• Cut the cake in half lengthwise using a warm knife, then cut into thirds crosswise to make 6 rectangles; cut each rectangle in half diagonally to make 2 triangles. Top each triangle with whipped cream, ice cream and the prepared chocolate sauce.

Steps:

• Place the icing sugar and ground almonds in the bowl of a food processor and pulse about 15 times until fully combined. Sieve this mixture into a large bowl, discarding any particles that stay in the sieve. Add the first batch of egg whites to the almond mixture, mix to form a thick paste and set aside.
• Tip the second batch of egg whites into a spotlessly clean, heatproof bowl and have an electric whisk at the ready. Place 50ml water and the granulated sugar into a small saucepan on medium heat. Bring to a boil and cook until the syrup registers 110C, using a sugar thermometer, at which time start to beat the egg whites on high speed. Once the syrup is at 118C pour it slowly down the side of the mixer bowl, avoiding the moving whisk. Continue to whisk on high until the mixture has cooled slightly and you have a shiny peaked meringue mixture – the bowl should no longer be hot to the touch, but still warm. Add the colouring and whisk to combine.
• Tip the meringue onto the almond mixture and gently fold together. It is important not to over-mix the batter – it should fall in a thick ribbon from the spatula. The ribbon should also fade back into the batter within about 30 secs – if it doesn’t, fold a few more times.
• Heat oven to 170C/150C fan/gas 3-4. Line three baking sheets with baking parchment. Transfer the batter to a piping bag fitted with a large round nozzle. Hold the bag vertically to the tray, with the nozzle about 1cm from it. Pipe rounds about 2.5cm in diameter onto the prepared baking sheets. Leave to rest for 30 mins, or until the macarons have developed a skin.
• Bake the macarons for 14 mins (this needs to be precise, so you could test a macaron first). Immediately slide the parchment onto the work surface and cool for a few minutes before gently peeling the macarons off the paper.
• To make the filling, place the cream in a small saucepan and the chocolate in a medium bowl. Bring the cream just to the boil and pour over the chocolate. Leave to stand for a few mins, then stir to combine. Add the butter and stir until smooth, then leave to set until thickened. Place the chocolate mix into a clean piping bag with a smaller nozzle and pipe around the edge of half the macarons. Fill the centre with jam and sandwich with another macaron shell.
• Once finished, the macarons will improve with an overnight rest in the fridge.