Gin Sour

Aperitif

Add all the ingredients in a shaker, including the orange zest, except for the Angostura bitters.
Add ice and shake vigorously for 10 seconds.
Strain the contents of the shaker into a container and discard the ice.
Shake the cocktail again very firmly without ice to froth the drink at its maximum.
Double strain into a small tumbler glass and garnish with individual drops of Angostura bitters.

romeo's gin