Maybe on lamb it would be good. I was surprised it was pretty tart, too. I don't know if I just added too much lemon juice, but the tartness and sugar completely overwhelm the cucumber to me.I've never done the cucmber mint jam. I did look up what others suggested using it on. One said it was so sweet she thought "my family will love it as syrup and stir it into drinks." IDK about that. I've never been a mint drinker. Others suggested glaze on grilled lamb chops & salmon. I would try it on lamb just not sure on Salmon. Trying to help you out, but not finding a lot of suggestions. Seems like some love it though.
Oh well, it was either that or more pickles and there are only so many pickles I can eat anyway!