Livery cake!! Tried to make it once...nearly had to move out of my house cos of the stench!!! Dogs were extreamly happy and loved it but I'm not sure I could do it again (I'm vegi so find cooking meat smell extreamly hard to deal with!!)

I find the best thing is cheese, all of mine love it and it's easy to carry with you. Also sausages, I just buy the cheap one's from the supermarket and cook a big pile then chop them up. They are useful for distance recall cos they can get a whiff and come running!!

Fish4dogs do some really good training treats, might be worth trying them?