K, think I have sussed it out....nix on the watercress, I have free samples of truffle puree in the fridge
Gonna make a stock first, from the ham hocks, then use that stock to cook the beans. This way, the hocks won't get bean flavour or bean detrituts on em.
Beans gonna be nice and smoky cooked in that stock...then, the cooked hocks: double-fry for ultimate crispness of the skin, serve on top of the braised beans with a drizzle of truffle vinaigrette around it for a fancy little "pork 'n beans" appetizer