Stir with ice, strain into a Campari-rinsed cocktail coupe, and garnish with a grapefruit twist.
(*) An Amontillado or Oloroso will work here in a pinch but will come across as a little drier and lacking light raisiny notes. Lustau's cream sherry is a mix of Oloroso with a little Pedro Ximenez.
I recalled Maks Pazuniak's Warning Label from the 2011 Beta Cocktails book and was inspired to riff on it. I subbed out the 151 proof Demerara rum and Punt e Mes for Plantation OFTD and Lustau's East India Solera Sherry, respectively, for starters. I also split the Cynar with Benedictine as drinks like the Filthy Rich and Chachita were still fresh in my mind. Finally, instead of the grapefruit bitters, I utilized mole bitters and replaced the grapefruit notes by swapping out the lemon twist with a grapefruit one, and I kept Maks' original Campari rinse intact.