Boston Cooler

Name: Boston Cooler Cocktail Recipe
Prep time: 5 min
Total time: 5 min
Yield: 4 servings
Ingredients: 1 tsp Powdered Sugar; 2 oz Carbonated Water; 2 oz Old Mr. Boston Imported Rum

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The Boston Cooler is a straightforward rum-based cooler mixing Old Mr. Boston Imported Rum with carbonated water and powdered sugar for a light, refreshing drink.

🏷️Equipment: collins glass

Total

5 min

Servings

4

Recipe Source

Visit Mr. Boston Drinks

From Mr. Boston Drinks · by Old Mr. Boston De Luxe Official Bartender's Guide

Ingredients

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1 tsp Powdered Sugar
2 oz Carbonated Water
2 oz Old Mr. Boston Imported Rum

3 Ingredients

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Instructions

1
Into 12 oz.
2
Tom Collins glass, put:
3
Juice 1/2 Lemon
4
1 Teaspoon Powdered Sugar
5
Carbonated Water
6
Then fill glass with cracked ice and add:
7
Boston Imported Rum
8
Fill with carbonated water or ginger ale and stir again.
9
Insert spiral of orange or lemon peel (or both) and dangle end over rim of glass.

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Tips & Notes

Pro tips

Dissolve the powdered sugar completely in the rum before adding carbonated water to avoid grittiness.
Add carbonated water last and stir gently to preserve bubbles.
Serve immediately over fresh ice to maintain carbonation and chill.

Substitutions

Old Mr. Boston Imported Rum → any light or dark rum (adjust to taste preference)
Powdered Sugar → simple syrup or granulated sugar dissolved in rum (1 tsp equivalent)

Common Questions

What type of rum works best in a Boston Cooler?

Old Mr. Boston Imported Rum is traditional, but any light or dark rum of similar proof will work. Choose based on whether you prefer a lighter or richer flavor.