Cake

  • 250g unsalted butter, at room temperature
  • 250g caster sugar
  • 115g (1/3 cup) orange marmalade
  • 4 eggs
  • 140g dark chocolate, melted & cooled
  • 340g (2 1/4 cups) self-raising flour
  • 50g (1/2 cup) dark cocoa powder
  • pinch of salt
  • 1 1/2 tsp finely grated orange rind
  • 125ml (1/2 cup) fresh orange juice (divided)
  • 150g sour cream
  • 2 tsp Grand Marnier or Triple Sec
  • Dark chocolate, extra, melted, cooled, to drizzle

Burnt White Chocolate Ganache

  • 500g white chocolate, chopped
  • 500ml thickened cream
  • Large pinch of sea salt

Instructions

  1. Ganache: Preheat oven to 150C/130C fan-forced. Place chocolate in a baking dish. Spread chocolate over prepared tray. Bake, stirring with a dry metal spoon every 10 minutes, for 30 minutes or until dark golden and aromatic (chocolate will seize). Mine took about 45 minutes to get to this level.
  2. Bring cream just to the boil in a saucepan over medium heat. Remove from heat. Whisk in chocolate until melted and smooth. Strain through a sieve and discard any lumps in sieve.
  3. Stir in the salt. Set aside, stirring occasionally, for 1 hour or until cooled.
  4. Cover and refrigerate for several hours or overnight until spreadable.
  5. Preheat oven to 180C/160C fan forced. Grease the base and sides of two 20cm (base measurement) round cake pans and line with baking paper.
  6. Use electric beaters to beat butter, sugar and marmalade in a bowl until pale and creamy. Add eggs, 1 at a time, beating well after each addition. Add cooled dark chocolate and beat until just combined.
  7. Sift flour, cocoa and salt into a large bowl. Add orange rind, 50ml of the orange juice, half the sour cream and half the flour mixture to the butter mixture and beat on low speed until just combined. Repeat with remaining sour cream, flour mixture and another 50ml of the orange juice until just combined. Divide between prepared pans. Smooth the surface. Bake for 45-50 minutes or until a skewer inserted into the centre comes out clean. Cool in pans for 5 minutes then turn out and transfer to a wire rack to cool completely.
  8. Assembly: Remove ganache from the fridge. Stand for 20-30 minutes or until softened slightly. Use a balloon whisk to gently mix until thick and spreadable. Cut each cake horizontally into 2 discs. Combine liqueur and remaining orange juice in a small bowl. Brush top of each cake slice with liqueur mixture. Place 1 cake base on a serving platter. Spread with 1/4 of the ganache. Continue layering with the remaining cake and ganache, finishing with a top cake layer.
  9. Spoon remaining ganache into a piping bag fitted with a large star nozzle. Pipe peaks over the top of the cake. Drizzle with extra dark chocolate, if using.