Borinquen Rum Cocktail

Pro tips

• Chill your glass with ice before building the cocktail to keep it cold longer without over-diluting.
• Use freshly squeezed lime and orange juice—the acidity and brightness are core to balancing the sweetness of passion fruit syrup.
• Pour the 151-proof rum last and slowly over a barspoon to create a visible float layer for visual impact and controlled alcohol delivery.
• Strain cocktail over fresh ice rather than shaking with ice to avoid excessive dilution and maintain the layered effect.

Substitutions

• Light Rum → Gold Rum (adds deeper molasses notes; use same quantity)
• Passion Fruit Syrup → Grenadine or passion fruit purée + simple syrup (1:1 ratio)
• 151-Proof Rum → Overproof Dark Rum (similar heat; slightly less sharp)

Storage & make-ahead

Cocktails are best served fresh immediately after preparation. Pre-batch the rum, citrus, and syrup mixture up to 4 hours ahead; add the 151-proof float only when serving.

Equipment

barspoon · jigger or measuring cup · cocktail glass (rocks or coupe) · citrus juicer

Can I make this cocktail without passion fruit syrup?

Yes, substitute with grenadine (1/2 oz) for a sweeter profile, or use store-bought passion fruit purée mixed with simple syrup for authenticity.

What does the 151-proof rum float do?

It adds alcohol intensity and a warming finish, plus visual appeal when layered on top. Use it sparingly—a small pour is enough.

Should I use freshly squeezed citrus?

Fresh lime and orange juice are essential for flavor; bottled juice will result in a flat, overly sweet drink.

How do I float the 151-proof rum without it mixing?

Pour it slowly over the back of a barspoon held just above the surface of the drink so it layers on top.

Can this be made as a batch cocktail?

Yes, multiply ingredients and batch in a pitcher without the 151-proof rum, then add the float to each glass individually.