You can boil it down very, very slowly (takes a day) into gjetost,
which is a brown cheeselike substance that's amazing but also
overpoweringly sweet and intense.
There are whey cheeses you can make, but only if the whey is fresh
(i.e., you can't have cultured the milk before you curded it).
I know so very little that I feel uncomfortable running a cheese
workshop. Sunday, March 1st'd be a great day for a cheese workshop.
I'll make gjetost from any whey left around if somebody wants to
volunteer to lead a mozzarella workshop. Ricotta?
Jeff