Frozen Berkeley

Name: Frozen Berkeley Cocktail Recipe
Prep time: 5 min
Total time: 5 min
Yield: 4 servings
Ingredients: 1 1/2 oz Old Mr. Boston Rum; 1/2 oz Old Mr. Boston Five Star Brandy; 1 tbsp(s) Passion Fruit Syrup; 1 tbsp(s) Lemon Juice; 1/2 C Crushed ice

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Frozen Berkeley is a blended rum and brandy cocktail featuring passion fruit syrup and fresh lemon juice, served over crushed ice for a smooth, tropical frozen drink.

🏷️Equipment: champagne flute

Total

5 min

Servings

4

Recipe Source

Visit Mr. Boston Drinks

From Mr. Boston Drinks · by Mr. Boston Deluxe Official Bartender's Guide

Ingredients

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5 Ingredients

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Instructions

1
Combine ingredients with half a cup of crushed ice in a blender and blend at low speed.
2
pour into champagne glass.

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Tips & Notes

Pro tips

Blend all liquid ingredients with crushed ice until smooth and slushy; over-blending releases too much ice water and dilutes the drink.
Use fresh lemon juice, not bottled, to preserve the bright acidity that balances the passion fruit sweetness.
Chill your glassware before serving to keep the drink frozen longer.
Add passion fruit syrup gradually if using homemade versions, as sweetness levels vary widely.

Substitutions

Old Mr. Boston Rum → light rum or white rum (smoother, less molasses flavor)
Old Mr. Boston Five Star Brandy → cognac or VS brandy (adds elegance, slight increase in cost)
Passion Fruit Syrup → passion fruit puree or nectar (adjust consistency; nectar may require less added syrup)

Storage & make-ahead

This is a fresh frozen drink best consumed immediately; do not store blended.

Equipment

blender · cocktail glassware (coupe or highball)

Common Questions

What type of rum should I use for Frozen Berkeley?

Old Mr. Boston Rum is specified in the recipe, but light or gold rum works well as a substitute for a smoother tropical flavor.

Can I make Frozen Berkeley without a blender?

Yes, you can crush the ice finely and stir all ingredients together in a glass, though blending creates a smoother, more integrated texture.

Is passion fruit syrup essential?

Yes, passion fruit syrup is the defining ingredient. It can be homemade or store-bought, but substitutes like passion fruit puree or nectar will change the flavor profile.