Got a different sized tray? Use our cake calculator to customise this recipe to fit. Preheat the oven to 180C/160C Fan/Gas 4. Grease a 30x20cm/12x8in rectangular cake tin with butter. Line the tin ...

Use this large sponge cake recipe as the base for a kids’ party cake. It’s a jam-filled sponge coated with buttercream, ready for you to cover with fondant icing and decorate in any way you like.