Optional (Not part of the original Harry MacElhone instructions)
Some people prefer shaken to stirred
Some people prefer coating or atomizing the absinth on the glass to give it an, "absinth rinse," and discard the absinth.
3 dash(es) Absinthe
Notes
Sometimes spelled, "Zazarack," or "Zazerac," This is the original 1928 variant of the classic Sazerac. The 1928 Zazarac adds Rum along with gomme syrup in place of sugar or simple syrup as well as other bitters. It was first documented by Harry MacElhone in his cocktail book, Harry's ABC of Mixing Cocktails.Learn more on this Wikipedia article.
Keyword 1928 Zazarac, Harry MacElhone, Harry MacElhone Sazerac, Harry MacElhone Zazarac, Zazarac, Zazarack, Zazerac