Braised Lamb With Prunes

4 lamb shanks handful plain flour 120 ml oil 2 onions 2 sticks celery 2 carrots 2 garlic cloves 150 ml white wine 2 bay leaves 400 g tomatoes 600 ml chicken[...]

6 lamb shanks (3/4 to 1 lb. each) kosher salt & freshly ground black pepper 2 tablespoons extra-virgin olive oil 1 cup dry white vermouth 2 bay leaves 2 heads[...]