A twist on Erskine Gwynne's classic Boulevardier, balancing extra
rye and campari with a small amount of Cynar 70, a
stronger-than-expected artichoke liqueur. Paul Clark of Serious
Eats refers to it as "a Negroni's long lost autumnal cousin."
Combine in a shaker half-filled with ice. Shake intensely for
10-15 seconds, pour into a rocks glass over a large ice cube, top
with a slice of blood orange.