- 225g/8oz butter, plus extra for greasing
- 225g/8oz golden caster sugar
- 4 free-range eggs, beaten
- 225g/8oz self-raising flour, sifted
- 1 large orange, zest only
- 300g/9oz fresh raspberries
- 2 tbsp fresh orange juice
- 1 heaped tbsp golden caster sugar
- 250g/9oz butter, softened
- 250g/9oz icing sugar, seived
- ½ orange, juice only
- 1 large orange, zest only, plus a little zest to decorate
- Preheat the oven to 180C/350F/Gas 4.
- For the cake, grease and line two 20cm/8in sandwich tins with baking parchment, and dust with flour.
- In a food mixer, cream together the butter and sugar until pale and fluffy.
- Gradually beat in the eggs, then add the flour and orange zest and mix until well combined.
- Divide the mixture evenly between the two cake tins, then bake in the oven for 25-30 minutes, or until golden-brown and slightly springy to the touch. Remove from the oven and set aside to cool slightly in the tins before turning out onto a wire rack to cool completely.
- Meanwhile, for the jam, place the raspberries, orange juice and golden caster sugar into a small saucepan over a low heat. Cook for 15-20 minutes, or until the raspberries begin to break down. Remove the pan from the heat and set aside to cool completely.
- For the icing, beat the butter, icing sugar, orange juice and zest in a bowl until smooth.
- To serve, place one sponge on a serving plate or cake stand, and spread half of the icing on top. Spoon over the jam, top with the second sponge and finish with the remaining buttercream. Decorate with a little more orange zest if desired.