Lemon sponge cake
Simon Rimmer scores a lemony hat-trick with this delectable lemon sponge cake soaked in lemon icing and filled with lemon curd mascarpone.
Ingredients
For the lemon drizzle
- 4 lemons, juice only
- 75²µ/2¾´Ç³ú caster sugar
For the sponge
- 200g/7oz caster sugar
- 200g/7oz unsalted butter, plus extra for greasing
- 2 lemons, zest only
- 3 free-range eggs, beaten
- 200g/7oz self-raising flour, plus extra for dusting
For the filling
- 2 free-range egg yolks
- 75²µ/2¾´Ç³ú caster sugar
- 50g/1¾oz unsalted butter
- 2 lemons, juice and zest
- 100²µ/3½´Ç³ú mascarpone
Method
Preheat the oven to 180C/350F/Gas 4. Grease and line a 20cm/8in springform cake tin with baking paper.
For the lemon drizzle, in a bowl, mix together the lemon juice and sugar until the mixture is well combined and the sugar has melted. Set aside.
For the sponge, beat the sugar, butter and lemon zest in a mixing bowl until pale and fluffy, using an electric whisk.
Gradually add the eggs, whisking after each addition until the egg is completely incorporated into the mixture before adding the next. Carefully fold in the flour using a metal spoon.
Pour the cake batter into the prepared cake tin and bake in the oven for 30-40 minutes, or until the sponge has risen and is cooked through. (The sponge is cooked through when a skewer inserted into the centre of the cake comes out clean.)
As soon as the cake is cooked, remove it from the springform cake tin and prick the top all over with a cocktail stick. Pour over the lemon drizzle mixture to soak the sponge, then set aside to cool on a wire rack.
Using a metal spoon, carefully fold the mascarpone into the lemon curd mixture to create a marbled effect.
When the sponge has cooled, cut the cake in half horizontally to create two thinner cakes. Spread the lemon filling all over the lower half of the cake, then place the top half (the half that was pricked and soaked in the lemon drizzle) on top.
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