Love it Simon, made my day reading that!

First time I've ever been referred to as a discerning anything, I think. Cheers Simon!

An excellent use for Benedictine, and a great way to work through that bottle of Vermouth that the usual extra dry Martinis seems to get through.

Definitely needs the extra dilution to cut through the herbaceousness, and can use a touch of simple syrup with something as dry as Noilly Prat.

The end result is a Martini spinoff that's just delightful to look at, smell, and drink.

It's fine, but not sure I'd go out of my way to make one. If I've squeezed a fresh grapefruit, I probably want a drink that keeps things very grapefruit-forward, whereas here the cassis just detracts from it a bit I think.