Yesterday I used my pasteurized egg whites and made 2 big containers of royal icing. I made a thick consistency (almost glue) royal icing and put it in the freezer. I'm planning to use it in a couple of weeks or so.
I'll let you how is a thick consistency after it thaws.
I have on more question... I don't know if I understand correctly from Ali's Sweet Tooth, but is it possible to freeze again icing you have already frozen and thawed?
Thanks again