This classic grog balances rum, citrus, and brown sugar for a simple, historic, and deeply comforting drink. Enjoy it hot or cold for a tropical twist with a seafaring soul!
Add rum, lime juice, and grapefruit juice (if using) to your mixing glass or mug.
Stir in brown sugar until dissolved.
Pour in hot or cold water and stir gently with a bar spoon.
Taste and tweak the sweetness or citrus to your liking.
Add a pinch of cinnamon if desired.
Garnish with a lime wedge or cinnamon stick before serving.
If serving cold, add a few ice cubes and skip the heating step.
Notes
Balance lime and sugar to taste—dark rum adds depth, hot water brings warmth, and cold water keeps it bright. Fresh citrus juice makes all the difference. Cinnamon adds subtle spice. Adjust water temperature to the season or your mood.