Join thousands of like-minded professionals and cocktail enthusiasts, receive our weekly newsletters and see pages produced by our community for fellow Discerning Drinkers.
I’m here so answer my own question.
My research indicates that the recipe was created by Filippo Previero, who is Italian.
Turns out that “Stonage” is Italian for “Stone Age”!
Mystery solved!
Is it meant to be “Stone Age”, given that it’s garnished with “edible chocolate stones”?