Wow thanks judydawn that's the quickest and easiest recipe I have seen and means I now have a legitimate reason not to make my own marshmallows!
It does mean that I do have to buy quite a few bags of pink and white marshmallows and pick out all of the white ones, for some reason we can only buy the mixed bags out here.
I will give it a go and let you know how it turns out.
Thanks again