Summarize the following:
1 1/2 oz (45 ml) light rum 3/4 oz (22.5 ml) lemon juice 1 small egg white (use pasteurized if worried about egg safety) 1/2 oz (15 ml) creme de cacao. Shake to combine.
Assemble the following ingredients: Fill a cocktail shaker with ice. Pour the ingredients into the shaker. Strain into a cocktail glass. Garnish with a lemon twist.