A very interesting Sidecar variation, that happily gives me something to do with my crème de cassis besides putting it in sparkling wine. I may also try this with some Aelder elderberry liqueur from Buck & Birch, which has a similar flavour profile to cassis.

One query about the origin of this cocktail. In my own academic field, it would hardly be considered adequate to credit a research collaborator as “so-and-so’s wife.” Presumably the estimable individual espoused to Mr Stevenson has a name. Did anyone try to find out what it is, so that she can be credited more appropriately for her contributions to mixology?