> I said 'the cake section'. Amongst other things 'powdered egg white', the
> albumen,  is used in the preparation of hard sugar icing known as 'royal
> icing' as often used on wedding cakes.  It is certainly there in our larger
> supermarkets from Sainsburys to Safeway.
I believe the equivalent in the States is call meringue which is made from
beaten egg whites.  Its been a while but I think it is still sold by most
grocery stores.  If not, a restaurant food supply will carry it for certain
but the quantity might be rather large.  For small quantities I used to use
fresh eggs which worked just fine.
Sincerely, Art
Art Chakalis
Columbus, Ohio, USA