1 1/2 oz of Gin
1 1/2 oz of Orange Juice
1 oz of Lemon Juice
1/2 oz of falernum
1/4 oz of egg white (or egg)
3 dash of bitters
Place all ingredients in a mixing glass, and shake for approximately 10 seconds. Add ice, and shake again. Strain into a chilled cocktail glass. Garnish with an orange twist.