Bushwhacked Sour

A Bushwhacked Sour Cocktail

By John Gerber

1½ oz. Pisco

½ oz. Elderberry Shrub

½ oz. Fresh Lime Juice

½ oz. Simple Syrup

1 each egg white - (caveat emptor)

3 dash Bitters

Combine the first five ingredients in a dry shaker.

Shake vigorously to develop a froth.

Add ice and shake again until well chilled.

Strain into a chilled cocktail glass.

Dash the bitters over the frothy top.