I am looking for a recipe that my mother in law used to make all the time. It is icing that you cook on the stove, but it contains no icing sugar, but flour instead. It must be kept cool or it will melt very quickly. I have been looking forever it is not sweet. She used to stir it quickly so it did not stick to the pan.

Can someone please help me find this. She has passed on and I can't find her recipe file!
Thank you
Kim Chelli
London, Ontario Canada