According to the book I got for Christmas¹, this is the “missing link between the Manhattan and the Martini”, and dates back to 1884. Tastewise, ithat description works for me, as does the cocktail itself.

• 50ml red vermouth
• 25ml gin
• 5ml maraschino
• generous with the bitters²

1. The Spirits by Richard Godwin ↩︎
2. Today was one of those vanishingly rare days where I actually finished a bottle of angostura. ↩︎