Whatever the design plan, consider store-bought frosting ... press rainbow sprinkles onto the open sides of the rectangular layer cake, so each bite is covered in sugary crunch.

A great birthday cake for sports fans! You will need a deep 23x15cm/9x6in rectangular cake tin and 4 nozzles for piping (no. 2 writing nozzle, no. 3 writing nozzle, no. 7 small star nozzle and no ...