I didn't have any icing sugar for my Kaiserschmarrn (
my recipe) so I thought I'd try making my own.
I placed some demerera sugar (which I prefer to refined sugars) in my mini food processor, which is an attachment for my stick blender, and pulsed until I ended up with a fine powder.
It's not quite as fine as the shop bought stuff (maybe blending some more would do the trick) but it's from unrefined sugar so it tastes better.
I should have taken some pics of the process to show the difference but didn't think of it, sorry.