You can colour the buttercream at this stage. To make butterfly cakes, cut the top off each cake using a small serrated knife – angling the knife in slightly so that you make a concave cut.

Cut each circle in half to make butterfly wings to decorate the tops of the cakes. Before filling the piping bag with icing, insert the nozzle and fold back the top of the bag so it doesn’t get ...

Cut a shallow cone-shaped piece from the top ... Dust with the icing sugar and serve. These butterfly cakes are best eaten the day they are made.