Preheat the oven to 180C/160C Fan/Gas 4 and line 2 x 12-hole fairy cake tins with paper cases. Cream the butter and sugar together in a bowl until pale. Beat in the eggs, a little at a time ...

Bake the fairy cakes for 15 minutes in the middle ... You can colour the buttercream at this stage. To make butterfly cakes, cut the top off each cake using a small serrated knife – angling ...