Whisky Sour

Sour is a cocktail containing base liquor, lime juice, sweetener (sugar syrup or grenadine or orange juice or pineapple juice) and egg white for foam.

Whisky sour

Take a glass.
Add 3/4 oz Lemon juice
1/2 oz orange juice
1.5oz simple syrup
2 oz Bourbon whiskey
1 oz egg white

Shake them.

Then add ice and shake again.  (critical to shake separately - before & after ice)

Then strain in a chilled cocktail glass and garnish with bitters.

Add few drops of bitter and make a design using toothpick

For Piscosour: substitute whiskey with pisco (brandy from wine making regions of Peru & Chile)