Iam vegetarian but I give lottie the little hotdogs for dogs and she loves them, the liver treats are supposedly irresistable but have not had the courage to try making them yet , think I will need to get my mum to make these.
At least if you made them yourself you would know what is in them. I think in such a sittuation as class you need a real high value treat as they usually ignore the run of the mill stuff when the are stressed.
Try putting liver treat recipe in the search box and it may come up if not I can get you a copy of it if you want to try it.