Daiquiri Sour

Use 2:1 rich simple syrup for its listed portion.

Use these specified component styles: Light white rum (charcoal-filtered 1-4 years old).

Chill a cocktail coupe in preparation for serving.

Prepare a twist of lime zest to use as a garnish.

Combine the light white rum, Havana Club Original Añejo 3 Años Cuban rum, freshly squeezed lime juice, rich sugar syrup, Difford's Daiquiri Bitters, and your choice of egg white, Vegg White, or Fee Foam in a shaker with ice.

Shake the mixture vigorously, then strain it back into the shaker, discarding the ice.

Dry shake the ingredients again without ice to achieve a silky texture.

Fine strain the cocktail into the pre-chilled coupe.

Express the lime zest twist over the surface of the cocktail to release its fragrant oils, then use it as a garnish.