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.

a single layer number like this chocolate and vanilla marble cake. It bakes up in a square cake pan, and you’ll have the perfect amount of frosting. Plus, if you’ve got kids like me ...

5cm/2½in long) and a tennis net about 12x3cm/4½x1¼in (it should be the same width as the court you piped onto the cake). Spoon the remaining white icing into a piping bag fitted with a number 2 ...