Sage Salt

 

Some Sage leaves off a plant
Salt

Wash and dry the sage. Strip the leaves from the plant, then put in a pestle and mortar with some salt. Grind away until all the salt's absorbed, put in more salt, then grind some more. Eventually the leaves will disintegrate and you end up with a green-grey sticky salt that smells of sage.

Why would you do this? In this case it's to rub on the skin of a pork roast to try and improve the crackling. The thing to remember about this is that it will smell of sage, but taste of salt.