Classics You Should Know: Pisco Sour

Add pisco, lime juice, simple syrup and egg white into a shaker and dry-shake (without ice) vigorously. Add ice and shake again until well-chilled. Strain into a chilled Nick & Nora glass. (Alternatively, you can strain it into a rocks glass over fresh ice.) Garnish with 3 to 5 drops of Angostura bitters. Using a straw, toothpick or similar implement, swirl the bitters into a simple design, if desired.