American Grog

Name: American Grog Rum Cocktail
Prep time: 5 min
Total time: 5 min
Yield: 4 servings
Ingredients: 1 lump Sugar; 1/4 Juice of a Lemon; 1 1/2 oz Old Mr. Boston Rum

American Grog is a straightforward rum cocktail built on three essential ingredients: aged rum, fresh lemon juice, and dissolved sugar. Its balance of citrus brightness and spirit warmth makes it a timeless choice for casual entertaining.

🏷️Equipment: whiskey glass

Total

5 min

Servings

4

Difficulty

Easy

Est. Cost

$10–$16

Recipe Source

View original recipe

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

Ingredients

1 lump Sugar
1/4 Juice of a Lemon
1 1/2 oz Old Mr. Boston Rum

3 Ingredients

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Instructions

1
Pour ingredients into hot whiskey glass and fill with hot water.

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Tips & Notes

Pro tips

Dissolve the sugar fully with lemon juice before adding rum to ensure even sweetness and proper texture.
Use fresh-squeezed lemon juice, not concentrate, for proper acidity and flavor balance.
If serving hot, warm the glass first and add the ingredients to hot water or a hot mug rather than heating spirits directly.

Substitutions

Old Mr. Boston Rum → any aged or spiced rum (adjust sweetness to taste)
Sugar lump → 1/2 oz simple syrup or 1 tsp granulated sugar (simpler mixing, same result)

Storage & make-ahead

Not applicable; American Grog is mixed fresh and consumed immediately.

Common Questions

What's the difference between grog and a rum punch?

Grog is a simple two-or-three-ingredient drink, while rum punch typically includes multiple juices, spices, and sometimes tea or other liqueurs for added complexity.