Danish milk products

[dfrankis at dial.pipex.com]

Neil Ward wrote:
I once bought what I thought was half-fat milk in Copenhagen, only to
> discover, when I took a hearty swig from the carton, that it was 
soured milk.  They drink that stuff in Denmark!  I sprayed the hotel 
room with it.
> 
Was that ymer or buttermilk (kaernemaelk) or something else?  If 
ymer,it's delicious with brown sugar and dried rye breadcrumbs for 
breakfast - streets ahead of yoghurt in all its forms.

Buttermilk is best warmed and eaten with kammerjunker (small sweet 
biscuits).

If anyone knows how I can get any of these outside Denmark (British 
buttermilk isn't the same, I don't know why), I will be forever 
grateful.

David, suffering from withdrawal not having been to Copenhagen for 
over ten years