Starts off looking like this with the shanks (no browning!) about half submerged in the braising liquid:
After an hour and half, still not too inspiring:
But after a total of 5 hours:
Great colour, tastes amazing. Don't bother trying to strain the sauce. Just tip the pan to pool the sauce at one end and use a spoon to push the fat out of the way. They serve it with seared baby fennel, a wheat berry salad and minted yoghurt. Haven't got that tonight so it'll be couscous and blanched green beans tossed with extra virgin olive oil.
This dish would also scale easily to a dozen shanks in a larger roasting pan. This technique is very similar to one proposed by Alice Waters in The Art of Simple Food for pork shoulder with chiles (the half-submerged lid-off braise).