Japanese Fizz

Shake in iced cocktail shaker strain

1 tsp sugar (4 dashes)

1 1/2 oz rye or Bourbon whiskey (or more to taste) (4.5 cl)

1/2 oz Port (1.5 cl)

1 egg white (optional) (1/2 oz, 1.5 cl)

Fill with ice, soda

Serve in a tall glass (10.0 oz)