from PDT

  • 1.5 oz. Partida Reposado Tequila
  • .5 oz. Martini Sweet Vermouth
  • .5 oz. Dolin Dry Vermouth
  • .5 oz. Campari
  • 1 dash Angostura Bitters

Stir with ice and strain into a chilled coupe. Garnish with an orange twist.

Gary Regan popularized this drink, sans the dash of bitters, which he added along with a tad more tequila. —Mr. Boston: Official Bartender's Guide, 1974