I often cook myself stewing lamb in a casserole dish with a bit of vegetable stock. This leaves a very rich layer of lamb flavoured jelly under a layer of fat in the bottom of the dish. I know at least Girlcat likes lamb (she has been known to steal the bones if I put the plate down where she can reach it after eating) so I was wondering if there's any reason why I can't offer them the jelly as long as I scrape all the fat off the top.