One of the things my mum used to make when I was little and now I make it for my kids (and me too) It is really quick and easy and tastes great. I am not sure but I think that what kiwis (new zealanders) call rice bubbles (it's a breakfast cereal), Americans call rice crispies. So I think this may be a variation of rice crispie squares. There is no marshmallow in it.
Of all my childhood memories, this would have to be the sweetest. My Mum used to make this for me for my birthday parties and it was always a huge hit. Now, I enjoy making it for my kids. It also makes a great gift packaged up in some coloured paper with nice ribbon.