Pisco Sour Cocktail - cooking recipe

Ingredients

2 fluid ounces pisco
3/4 fluid ounce lime juice
3/4 fluid ounce simple syrup
1 egg white
1 cup ice
4 drops Angostura bitters

Preparation

Combine Pisco, lime juice, simple syrup, and egg white in a cocktail shaker. Cover and shake for 10 to 20 seconds to emulsify the egg white. Add ice; cover and shake until chilled.
Strain into chilled Champagne coupe. Garnish with 4 drops Angostura Bitters swirled with two straws.