Had to pull out the kitchen scale because all my measuring cups are in the dishwasher. I assume grams are ml but not sure so giving weights here.

50g vodka

25g Mastiha

15g Chartreuse

20g lemon juice

Was meh. I shook some of it with the peel of the lemon, that helped some. Not willing to toss it with the Chartreuse so I spritzed it by adding a bottle of yuzu lime tonic, it's good now but not what I was after.

I was looking for something to do with the mastiha, and had half a lemon but vodka was not the right base for this, I was not feeling gin today, wishing I had grappa or pisco, and I think lime also would have been better than lemon.

But mastiha & Chartreuse - yes. A definite affinity.