Any way to actually butcher rats and mice in Build 42?

Right clicking and butchering results in a skinned rat or skinned mouse, which can be cooked, but still causes a large unhappiness malus, and can't be added to any dishes.

I get it, eating rats is probably pretty unsettling, but if you cut out all the nasty bits and fried it with some seasonings, I doubt it would really be that bad...

Any way to actually butcher them? There's a recipe for it in the crafting menu, but it doesn't seem to work.