Jamaican Mule
A Jamaican Mule is 50ml of spiced rum, 12.5ml of fresh lime juice and 7.5ml of rich sugar syrup stirred briefly in a copper mug, filled two thirds with cubed ice, topped with 75ml of ginger beer and capped with a crown of crushed ice, with a lime slice and a bouquet of mint. About 2.0 UK units from a rum at 40% ABV. The name says Jamaica. The recipe does not. The specification calls for spiced rum, not a Jamaican pot-still rum, and nobody is recorded as having created or named it. It is the drink most people mean when they ask for a spiced rum mule: a Moscow Mule with the vodka swapped for a rum that already carries vanilla, cinnamon and clove, so the ginger beer meets the spice instead of covering it. It is shorter than it looks. At 75ml the ginger beer is half the glass rather than two thirds, and the lime and rich syrup sit under it as a small sour. Taste the ginger beer first: a dry, hot one wants the full syrup, a sweet one wants none.
Glassware: Copper Mug
Garnish: Lime slice on the rim and Mint sprigs a small bouquet standing in the crushed ice
Ingredients
50ml
A spiced rum at 40% ABV; many are bottled at 37.5% and fade sooner under the ginger beer. The recipe names the style, not a bottle. Expedition Spiced Rum lists ginger in its own flavour profile beside the vanilla, cinnamon and clove, so the ginger beer meets it halfway.
12.5ml
Squeezed the same day. At 12.5ml, a quarter of the rum, it is deliberately short: the ginger beer brings sharpness of its own, and the drink is meant to taste of rum and ginger before lime.
7.5ml
Sugar and water at 2:1 by weight. The published recipe names a cane sugar syrup at the same strength, and a bottled cane syrup works too. Set it by the ginger beer: the full 7.5ml with a dry one, none with a sweet one.
75ml
Cold, dry and with real ginger heat, poured over the ice after the stir. At 75ml it is half the drink. Three Cents is the bottle the published recipe names; any fiery ginger beer does the job, and a soft, sweet one leaves the glass flat.
Instructions
Squeeze the lime juice the same day.
Chill a copper mug, or a collins glass, in the fridge.
Pour the spiced rum, lime juice and rich syrup into the mug and stir briefly, before any ice goes in.
Fill the mug two thirds full with cubed ice.
Top with the ginger beer, poured gently down the inside of the mug.
Fill the rest of the mug with a crown of crushed ice.
Garnish with a lime slice and a small bouquet of mint, and serve with a straw.
Source: Difford's Guide (recipe 1050, measures, method and garnish as printed; its 2:1 cane sugar syrup is our rich syrup). Last checked 12 October 2026.
Expert Tip
Stir the rum, lime and syrup together before any ice goes in. Rich syrup is heavy and settles; stirred into the spirit first, it is spread through the drink rather than waiting at the bottom of the mug for the last mouthful. Build the body on cubed ice and keep the crushed ice for the crown. Crushed ice right through the mug melts fast, waters the drink and flattens the ginger beer before you are halfway down. Taste the ginger beer before you measure the syrup. At 7.5ml the syrup is already small; with a sweet bottle, leave it out altogether and let the lime do the work.
Behind the Jamaican Mule
Flavour Profile
The Name
Mules take their names from a place standing for a spirit: Moscow for vodka, Dublin for Irish whiskey, Mexico for tequila, Kentucky for bourbon. Jamaica stands for rum here, but only in the loosest sense. The recipe asks for spiced rum, and a Jamaican pot-still rum, with its heavy ester funk, would make a louder and quite different drink.
Nobody is recorded as having created or named it, and no bar or date comes with it. The history that attaches to it is the Moscow Mule’s, usually dated to 1941; accounts differ on whether that drink was first mixed in Los Angeles or New York. The Jamaican Mule follows the pattern the Moscow Mule set and adds nothing to its story, so the name is best read as a label for a spiced rum mule rather than a claim about where it came from.
Why Spiced Rum Works
Vodka is in a Moscow Mule to add strength and stay out of the way. Spiced rum does the opposite. Its vanilla, cinnamon and clove sit on the same side of the palate as ginger, so the ginger beer picks the spice up and carries it rather than drowning it.
That changes the balance. Most spiced rums are sweetened, and ginger beer is a sugar drink, so the mule needs acid to stop the two sitting heavy together. The lime does that at 12.5ml, a quarter of the rum, and the syrup is rich, 2:1, so 7.5ml rounds the lime without adding much water. A buck is spirit, citrus and ginger, and this is one: a small sour under a short pour of ginger beer rather than a highball.
The Build
Rum, lime and syrup go into the mug first and get a brief stir, before any ice. Rich syrup is thick and would sit at the bottom if the ice went in first. Then cubed ice to two thirds, the ginger beer over it, and a crown of crushed ice to finish.
The crown does two jobs. It keeps the top of the drink cold where the mouth meets it, and it holds the mint bouquet upright so the scent reaches the nose with every sip. Crushed ice alone, right through the drink, would melt fast and flatten the ginger beer, which is why the body of the mug is cubed. A straw is practical with a crown of ice, and a collins glass serves the same drink when there is no copper mug to hand.
Ginger Beer and Syrup
The ginger beer is half the drink by volume and sets its character. A dry one with real heat suits the rum; a soft, sweet one leaves the glass flat and sugary, and extra lime does not rescue it. Chill the bottle well, because warm ginger beer melts the ice and loses its fizz.
The syrup is a dial, not a fixture. With a dry ginger beer, pour the full 7.5ml of rich syrup. With a sweet one, halve it or leave it out. If you keep only simple syrup at 1:1, about 10ml carries the same sugar with a little more water.
The Mule Family
Five ginger beer drinks compared
Jamaican Mule
- Spirit
- 50ml spiced rum
- Lime
- 12.5ml
- Syrup
- 7.5ml rich (2:1)
- Ginger beer
- 75ml
- Build
- Stirred, cubed ice, crushed-ice crown
- UK units
- About 2.0
Pack Mule
- Spirit
- 50ml Expedition Spiced Rum
- Lime
- 20ml
- Syrup
- 10ml simple
- Ginger beer
- 100 to 120ml
- Build
- Stirred over cubed ice
- UK units
- About 2.0
Moscow Mule
- Spirit
- 45ml vodka
- Lime
- 10ml
- Syrup
- None
- Ginger beer
- 120ml
- Build
- Stirred over cubed ice
- UK units
- About 1.8
Dublin Mule
- Spirit
- 50ml Irish whiskey
- Lime
- 20ml
- Syrup
- 15ml simple
- Ginger beer
- 90ml
- Build
- Stirred over cubed ice
- UK units
- About 2.0
Dark ’n’ Stormy
- Spirit
- 60ml Gosling’s Black Seal
- Lime
- Wedge only
- Syrup
- None
- Ginger beer
- 100ml
- Build
- Rum floated, unstirred
- UK units
- About 2.4
| Drink | Spirit | Lime | Syrup | Ginger beer | Build | UK units |
|---|---|---|---|---|---|---|
| Jamaican Mule | 50ml spiced rum | 12.5ml | 7.5ml rich (2:1) | 75ml | Stirred, cubed ice, crushed-ice crown | About 2.0 |
| Pack Mule | 50ml Expedition Spiced Rum | 20ml | 10ml simple | 100 to 120ml | Stirred over cubed ice | About 2.0 |
| Moscow Mule | 45ml vodka | 10ml | None | 120ml | Stirred over cubed ice | About 1.8 |
| Dublin Mule | 50ml Irish whiskey | 20ml | 15ml simple | 90ml | Stirred over cubed ice | About 2.0 |
| Dark ’n’ Stormy | 60ml Gosling’s Black Seal | Wedge only | None | 100ml | Rum floated, unstirred | About 2.4 |
The Jamaican Mule is the shortest of the stirred mules: half the glass is ginger beer rather than two thirds, so the rum is tasted rather than lengthened. Our own Pack Mule runs longer, with 20ml of lime and up to 120ml of ginger beer, and the Dublin Mule does the same with Irish whiskey. With a dark rum floated instead of a spiced rum stirred, the drink becomes a Dark ’n’ Stormy, a name Gosling Brothers hold as a trade mark for their Black Seal rum.
Make it at home
The Spirit
Spiced RumRum infused with spices and botanicals after distillation, which puts the whole category downstream of one choice: whole botanicals steeped in the spirit, or flavourings added to it. The label is usually the only way to tell which.
Need the Rum?
Pick up a bottle of Expedition Spiced Rum to make this cocktail.
Master the Techniques
More to explore
Frequently Asked Questions
Is a Jamaican Mule made with Jamaican rum?
How is a Jamaican Mule different from a Dark ’n’ Stormy?
How strong is a Jamaican Mule?
Can I use ordinary simple syrup instead of rich syrup?
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Moscow Mule
A Moscow Mule is 45ml of vodka and 10ml of fresh lime juice over ice in a copper mug, topped with 120ml of cold ginger beer and stirred once, with a lime wedge. Those are the IBA’s measures. About 1.8 UK units, all from the vodka. It is usually dated to 1941 and credited to John G. Martin, who was trying to sell Smirnoff vodka to Americans who did not drink it, and Jack Morgan of the Cock ’n’ Bull in Los Angeles, who had ginger beer he could not shift. Other accounts put the first one in a New York hotel bar, or credit the Cock ’n’ Bull’s bartender. The ginger beer decides the drink. At 120ml it is two thirds of the glass, so a soft, sugary one gives a soft, sugary Mule. Use the fieriest you can find, and keep the lime short: good ginger beer brings its own bite.
Dark ’n’ Stormy
A Dark ’n’ Stormy is 60ml of Gosling’s Black Seal rum floated over 100ml of ginger beer in a highball full of ice, with a lime wedge. About 2.4 UK units. Those are the IBA’s measures, and the name is a Gosling Brothers trade mark tied to Black Seal. Gosling Brothers say the drink was first mixed in Bermuda just after the First World War. The usual story puts ginger beer from a Royal Navy officers’ club with the local black rum, and a sailor is said to have called the colour that of a cloud only a fool or a dead man would sail under. Gosling’s has held a US registration on the name since 1991 and uses it to stop the drink being sold under that name with any other rum. The same build with another dark rum is a rum and ginger beer, and a sound one.
Dublin Mule
A Dublin Mule is 50ml of Irish whiskey, 20ml of fresh lime juice and 15ml of simple syrup built over ice in a copper mug or highball, topped with 90ml of ginger beer and stirred gently. A mint sprig and a lime wheel go on top. About 2.0 UK units. It is the Moscow Mule with Irish whiskey in place of vodka, and it has no documented inventor or date. Vodka disappears behind the ginger; a light Irish blend stays in view, adding grain sweetness and a soft fruit note. There is little technique to it. A fiery ginger beer and lime squeezed the same day decide how it turns out, and the syrup adjusts for how sweet the ginger beer is.
Pack Mule
A Pack Mule is 50ml of Expedition Spiced Rum, 20ml of fresh lime juice and 10ml of sugar syrup over ice in a copper mug, lengthened with 100 to 120ml of ginger beer and given one stir, then finished with a lime wheel and a mint sprig. About 2.0 UK units from the rum at 40% ABV. It is our mule. The published spiced rum mule, the Jamaican Mule, is a short drink: 75ml of ginger beer, a quarter-measure of lime and a rich syrup. The Pack Mule takes the same four parts and opens them out, with the lime doubled to 20ml and the ginger beer run long, because Expedition Spiced Rum brings its own sweetness and the vanilla, cinnamon and clove in it want room and acid rather than more sugar. The ginger beer decides most of it. A dry one with real heat suits the rum, and the syrup is set by how sweet the bottle is: the full 10ml for a dry ginger beer, none for a sweet one.
Where this one sits
Recipe by Jerry Can Spirits · Updated 12 October 2026