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Kentucky Mule

Also known as Bourbon Mule, Whiskey Mule

A Kentucky Mule is just a Moscow Mule that swapped out vodka for bourbon, giving the drink a richer, warmer backbone.

bourbongingerlimespicyrefreshinghighballcopper mugsummer

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ABV

Difficulty

Kentucky Mule

Overview

What this drink is like

The first sip hits you with sharp ginger spice and bright lime, but the bourbon quickly fills in with caramel and oak. The middle is a push-and-pull between the fiery ginger beer and the mellow whiskey. It finishes with a lingering warmth and a slight sweet-earthy note from the bourbon.

Who will like it

This is for people who like bourbon but want something tall, cold, and spicy rather than spirit-forward and neat.

When to drink

Drink this on a warm afternoon or at a casual party where you want something refreshing that still tastes like whiskey.

Ordering tip

Ask for a good ginger beer like Fever-Tree or Bundaberg if you care about the spice, since the standard soda gun ginger ale will make it fall flat.

Ice: CubedTemp: ColdCost: $2–$5Glass: Copper MugBatch-friendlyHome bar friendly

Flavor

Taste profile

This drink hits you with a sharp, spicy bite from the ginger and a tart squeeze of lime right away. The bourbon slides in underneath, adding a sweet caramel warmth that rounds out the edges. It is not a complicated or brooding drink; it is crisp, fizzy, and goes down easy. You mostly taste the ginger and the whiskey playing off each other, with the lime keeping everything awake. The finish is warm and a little earthy, but the ginger burn clears out your mouth pretty fast.

Finish: The ginger heat fades quickly, leaving a warm, slightly sweet oak note from the bourbon on the back of your tongue.

Primary tastes

spicysweetsour

Secondary

earthysmoky

Aroma

fresh mintginger spicecaramel
  • Bitternesslow bitterness

    There is barely any bitterness here, just a faint edge from the ginger beer and oak.

  • Sweetnessmoderately sweet

    The ginger beer brings a solid dose of sugar that stands up to the lime and whiskey.

  • Sournessmoderate acidity

    The fresh lime gives a sharp, mouth-watering tartness that cuts through the sweetness.

  • Strengthmoderate strength

    The bourbon makes its presence known but the tall glass of ice and mixer keeps it in check.

  • Refreshingvery refreshing

    Cold, fizzy, and citrusy, this is a drink built for hot weather and quick sipping.

  • Smokinesslight smoke

    You get a hint of char and oak from the bourbon, but nothing smoky dominates the glass.

  • Complexitylow complexity

    It is a straightforward three-ingredient build where what you see is what you taste.

Recipe

Make it at home

Built · Copper Mug · equal parts on Bourbon Whiskey. A mid-shelf bourbon works best; something too cheap tastes rough, something too expensive gets lost in the ginger

Before you start

Pull your copper mug or highball glass from the freezer if you have room, and make sure your ginger beer is cold. Cut a lime in half so you can juice one half and cut a wedge from the other.

Ingredients

  • Bourbon WhiskeyBase Spirit60ml
  • Lime JuiceJuiceFresh squeezed only15ml
  • Ginger BeerSodaUse a spicy ginger beer, not ginger ale120ml

Garnish: Lime wedge, Mint sprig

Tools

  • Copper Mug · Serving

    The traditional serving vessel that keeps the drink frosty cold

    At home: Highball glass

  • Jigger · Measuring

    Measuring the bourbon and lime juice

    At home: Shot glass or measuring spoon

  • Bar Spoon · Mixing

    Stirring the drink gently after adding the ginger beer

    At home: Long dinner knife or chopstick

  • Citrus Press · optional · Garnish

    Juicing the fresh lime

    At home: Squeeze by hand over a strainer

Ingredients and tools to make Kentucky Mule
Ingredients and tools

Steps

  1. 1

    Squeeze 15ml of fresh lime juice straight into your copper mug or highball glass. Toss the spent lime shell into the glass if you want extra lime oil in the drink.

    Step 1 — how to make Kentucky Mule

    !Using bottled lime juice leaves the drink tasting flat and metallic

  2. 2

    Pour 60ml of bourbon into the glass over the lime juice. Give it a quick stir with your bar spoon so the juice and whiskey mix together at the bottom.

    Step 2 — how to make Kentucky Mule
  3. 3

    Fill the glass to the top with ice cubes. You want them stacked up near the rim so the drink stays cold without watering down too fast.

    Step 3 — how to make Kentucky Mule

    !Leaving large gaps between ice cubes makes the drink dilute faster

  4. 4

    Top the glass with about 120ml of ginger beer, pouring it slowly down the side of the glass to keep as much fizz as possible. You will see the drink turn a pale amber as the ginger beer mixes in.

    Step 4 — how to make Kentucky Mule

    !Dumping the ginger beer straight down the middle kills the carbonation

  5. 5

    Take your bar spoon and push it down to the bottom of the glass, then pull it up once or twice to pull the bourbon and lime up through the ginger beer. You just want to blend it, not stir hard enough to knock the fizz out.

    Step 5 — how to make Kentucky Mule

    !Stirring too vigorously makes the drink go flat before you take a sip

  6. 6

    Stick a lime wedge on the rim of the mug and drop a mint sprig right next to it. Smack the mint sprig between your hands once before placing it so it releases its scent right under your nose when you drink.

    Step 6 — how to make Kentucky Mule

    !Leaving the mint unstuck means it just sits there without adding any aroma

Serve

Serve it right away while the ginger beer is still fizzing and the outside of the mug is frosty. Drink it fairly quick before the ice melts down and waters out the bourbon.

Variations

Ingredient substitutions

Each row shows what you can swap in place of an original ingredient, and how the drink changes.

Swap options for Bourbon Whiskey

  • Bourbon WhiskeyRye Whiskey
    Match
    Common availability

    Bourbon WhiskeyRye Whiskey: Makes the drink drier and spicier, with less caramel sweetness to balance the ginger.

  • Bourbon WhiskeyTennessee Whiskey
    Match
    Common availability

    Bourbon WhiskeyTennessee Whiskey: Adds a charcoal smoothness and slightly sweeter profile compared to standard bourbon.

Swap options for Ginger Beer

  • Ginger BeerGinger Ale
    Match
    Common availability

    Ginger BeerGinger Ale: Much sweeter and way less spicy, making the drink taste like flat soda with whiskey.

Related

Similar cocktails

Cousin drinks that share DNA with this one — each profile stands on its own.

Moscow Mule

Similar cocktail

Moscow Mule

The Moscow Mule uses vodka, which disappears into the drink, while the Kentucky Mule uses bourbon, which adds weight and flavor.

Match

The Moscow Mule is crisp and lets the ginger do all the talking, while the Kentucky Mule brings a heavier, sweeter bourbon character that stands toe-to-toe with the spice.

In common: Built in a copper mug, Ginger and lime dominant, High carbonation

Ingredients

Both share

Lime Juice, Ginger Beer

Only in Kentucky Mule

Bourbon Whiskey

Only in Moscow Mule

Vodka

The only difference is the base spirit, but swapping vodka for bourbon completely changes the drink's weight and flavor.

Flavor

Shared flavors

Sharp ginger bite, Bright lime acidity, Fizzy and refreshing

How Moscow Mule differs

Kentucky Mule is heavier and warmer, Moscow Mule is cleaner and lighter, Bourbon adds caramel and oak

View recipe & details →

Whiskey Ginger

Similar cocktail

Whiskey Ginger

The Whiskey Ginger skips the lime juice entirely, making it less tart and less complex.

Match

The Whiskey Ginger is a simple two-ingredient highball, while the Kentucky Mule uses lime to lift the drink and cut the sweetness.

In common: Whiskey and ginger combination, Built over ice, Highball style

Ingredients

Both share

Bourbon Whiskey, Ginger Beer

Only in Kentucky Mule

Lime Juice

The Kentucky Mule adds fresh lime juice to the basic whiskey and ginger beer combination.

Flavor

Shared flavors

Bourbon warmth, Ginger spice, Sweet and fizzy

How Whiskey Ginger differs

Kentucky Mule is more tart, Whiskey Ginger is sweeter and flatter, Lime adds brightness to the Mule

View recipe & details →

Dark 'n' Stormy

Similar cocktail

Dark 'n' Stormy

The Dark 'n' Stormy uses dark rum instead of bourbon, bringing molasses and tropical notes instead of oak and caramel.

Match

The Dark 'n' Stormy feels heavier and more syrupy from the dark rum, while the Kentucky Mule stays a bit leaner and earthier from the bourbon.

In common: Ginger beer driven, Built drink, Highball style

Ingredients

Both share

Lime Juice, Ginger Beer

Only in Kentucky Mule

Bourbon Whiskey

Only in Dark 'n' Stormy

Dark Rum

Both rely on ginger beer and lime, but the base spirit shifts the entire flavor profile from American oak to Caribbean molasses.

Flavor

Shared flavors

Spicy ginger backbone, Citrus tartness, Tall and refreshing

How Dark 'n' Stormy differs

Dark 'n' Stormy is richer and sweeter, Kentucky Mule is drier with oak tannins, Rum adds tropical weight

View recipe & details →

History

Origin

The Kentucky Mule is a direct bourbon riff on the Moscow Mule, which was created in 1941 at the Cock 'n' Bull restaurant in Los Angeles. No single bartender is credited with swapping vodka for bourbon, but the variation appeared naturally as the Moscow Mule gained popularity and drinkers adapted it to American whiskey.

Era
1940s
Confidence

The Kentucky Mule is a widely accepted variation of the Moscow Mule with no single established creator or exact first date of creation.

Practical

Tips & pitfalls

What works at home and what to skip when making this drink.

Tips

Worth knowing before you pour

  • Smack the mint sprig against your palm before garnishing to release the oils.
  • Pour the ginger beer down the side of the glass to keep it fizzy longer.
  • Use a spicy ginger beer if you want the drink to have a real kick.
  • Skip the cheap bourbon; the ginger will not cover up rough whiskey.

Avoid

Common mistakes

  • Do not shake this drink or you will destroy the carbonation.
  • Do not use bottled lime juice; it tastes metallic and flat.
  • Do not stir aggressively after adding the ginger beer.