- Preheat the oven to 160˚C fan oven/180˚C/gas 5. Grease and line 2 x 18cm cake tins.
- Beat together the butter and sugar. Add the eggs one at a time, beating in as you go.
- Add the rest of the cake ingredients and gently fold in.
- Divide between the cake tins and smooth out. Place in the oven for 35 minutes.
- Leave to cool. Sandwich the cakes together with the lemon curd. Mix the juices and sugar together and carefully spread over the top of the cake.