This is my first butter making experience so I do not want to extol the ease of which it is done because, actually, I have not even tasted this yet. I have not stored it. I have not made pastry with it.
But for what it is worth it was easy! I beat my litre of heavy cream until it went beyond the stiff peak stage and began to curdle. Only a few minutes later the curds became butter.
I removed the butter and kneaded it on a cutting board to remove as much water as possible. Then I worked it in painfully ice cold water a while longer.
The result is....butter....tada! These butter papers are so adorable and I wrapped it and refrigerated. I can hardly wait for tomorrow when I will do something with it!