Ingredients:
- 225g unsalted butter, softened
- 200g granulated sugar
- 4 large eggs
- 225g self-raising flour
- 2 tbsp orange zest
- 60ml whole milk
- 250ml orange juice
- 15g powdered gelatin
- 50g sugar
- 2 tbsp orange marmalade
- 200g dark chocolate (60% cocoa), finely chopped
- 150ml heavy cream
- 1 tbsp corn syrup
Instructions:
- Beat the softened butter and granulated sugar together until the mixture is pale and voluminous.
- Add the eggs one by one, beating well after each addition, then stir in the orange zest.
- Sift in the self-raising flour and gently fold it into the batter along with the milk, ensuring not to overmix.
- Divide the batter evenly between two 8-inch round cake tins and bake at 350°F (175°C) for 20-25 minutes until the sponges spring back.
- Allow the cakes to cool completely in the tins before removing.
- Sprinkle the gelatin over cold orange juice and let it bloom for 5 minutes.
- Gently heat the gelatin mixture with sugar and orange marmalade until fully dissolved; do not let it boil.
- Pour the orange mixture into a flat tray of the same diameter as the cake and chill for at least 2 hours until set.
- Heat heavy cream to 160°F (71°C) and pour over the chopped dark chocolate and corn syrup, stirring until a smooth emulsion forms.
- Assemble the cake by placing one sponge layer, topped with the set orange gel, followed by the second sponge layer.
- Pour the chocolate ganache over the top of the cake, smoothing with an offset spatula, and chill until set.