Shake once without ice and once with ice, and strain into a cocktail coupe.
During quarantine, I ran a few virtual USBG Boston Classic Cocktail Happy Hours. During one of them, the topic of drinks created in or named after Boston came up. When the Boston Cocktail was mentioned, I commented that it was Mr. Boston renaming the Bermudian or Bermuda Rose in 1935 to fit a theme instead of creating a cocktail anew. The flavor profile here was influenced style-wise by the classic Boxcar that I had just made to take the Boston Cocktail in a White Lady direction to craft the Boston Lady.