Hot Buttered Rum
A rich, old-fashioned warmer — dark rum and hot water enriched with a spiced butter batter that melts into something silky and comforting.
Ingredients
- 60 ml dark or aged rum
- 1 tbsp spiced butter batter (see below)
- 120 ml hot (not boiling) water
- For the batter (makes enough for ~10 drinks):
- 100 g softened unsalted butter
- 100 g soft brown sugar
- 0.5 tsp ground cinnamon
- 0.25 tsp ground nutmeg
- 0.25 tsp ground cloves or allspice
- 1 pinch fine salt
Method
- Make the batter: beat the softened butter with the brown sugar, spices and salt until smooth and creamy. It keeps in the fridge for a couple of weeks.
- Spoon a generous tablespoon of the batter into a warmed heatproof mug.
- Add the rum, then top with the hot water.
- Stir well until the batter melts completely into a silky, slightly frothy drink.
- Grate a little extra nutmeg over the top and serve hot.
How to serve
- Glassware
- Heatproof mug
- Serve temperature
- Hot
- Garnish
- Grated nutmeg, optional cinnamon stick
Hot buttered rum is a drink from another era — colonial American taverns, to be precise — and it has lost none of its comfort. The concept sounds unlikely until you taste it: a knob of sweet, spiced butter melted into rum and hot water, turning thin and watery into silky and rounded. It is pure cold-weather indulgence, and thanks to the make-ahead batter, one of the quickest warm cocktails you can put together once the cold sets in.
Tips for better hot buttered rum
- Soften the butter properly. Room-temperature butter beats into a smooth batter; cold butter stays lumpy and won’t melt cleanly into the drink.
- Don’t use boiling water. Just-off-the-boil water melts the batter and warms the rum without scalding the spices into bitterness.
- Stir thoroughly. Give it a good stir so the butter fully emulsifies — that’s what gives the drink its signature silky texture rather than an oily film.
Variations
- Hot buttered cider: use warm cloudy apple juice or cider in place of the water.
- Maple version: swap the brown sugar in the batter for maple sugar or a spoon of maple syrup.
- Salted caramel: a slightly heavier pinch of salt and a darker muscovado sugar push it towards salted-caramel territory.
A make-ahead winter staple
The real magic of hot buttered rum is the batter. Keep a tub in the fridge through December and you’re never more than a kettle away from a proper warm drink — equally good stirred into coffee or cider when rum isn’t wanted. It’s the kind of small bit of preparation that makes hosting in winter feel effortless.
Frequently asked questions
What does the butter actually do?
The spiced butter batter is the whole trick. As it melts it emulsifies into the hot water, giving the drink a silky, rounded body and carrying the spice and sugar evenly through every sip. Without it you'd just have spiced rum and water.
Can I make the batter ahead?
Yes — that's the point of it. A batch keeps in the fridge for up to two weeks or in the freezer for months, so you can make a single drink in moments. It's also lovely stirred into hot cider or coffee.
Which rum works best?
A dark or aged rum with caramel and molasses notes suits the buttery, spiced profile far better than a light white rum. Spiced rum works too, though you may want to ease back on the batter's spices.
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