How to get flat icing on a cupcake?

[CarlyP]

I tried getting flat icing on my cupcakes but slicing the top of the cupcake off, but bits of cake got into my icing and it looked a right mess, as you can imagine.

Please help x

 

[Emmy1987]

Try filling your cases half full or less, should give you enough space to flat ice without having to cut the cakes