Whiskey Sour
Bourbon, lemon and sugar, shaken with egg white for a silky foam — the original template for every 'sour'.
- Difficulty
- medium
- Prep time
- 5 min
- Strength
- 18% ABV
- Glassware
- Rocks glass
- Base
- whisky
- Serves
- 1
Ingredients
- Bourbon60ml
- Fresh lemon juice25ml
- Simple syrup20ml
- Egg whiteoptional15ml
About half an egg white; omit for a clear, foam-free version
- Angostura bittersoptional3ml
For the foam garnish
Garnish: Lemon wheel, Maraschino cherry
Method
- If using egg white, add all ingredients to a shaker and shake hard without ice for 15 seconds to emulsify (a 'dry shake').
- Add ice and shake again for 15 seconds until well chilled.
- Strain over fresh ice into a rocks glass.
- Dot a few dashes of bitters on the foam for decoration.
- Garnish with a lemon wheel and cherry.
Equipment
Don't have everything? Here's what works instead.
Cocktail shaker
Household swap: A clean jar with a tight-fitting lid, shaken vigorously
Fine strainer
Household swap: A small tea strainer for a smoother foam
Missing an ingredient?
Each swap below says what it changes and how to correct for it, so you can decide whether you are making this drink or a neighbouring one.
Instead of Bourbon
Best substitute: Rye Whisky
This is the base in this drink.
Flavour impact: Rye brings a spicier, drier edge than bourbon's rounder sweetness.
What changes
Expect less sweetness, more bitterness and more strength. Still a good drink, and a slightly different one.
- Sweetness ↓
- Less sweetness leaves the acid and the spirit more exposed, so the drink will taste sharper and drier than it should.
- Bitterness ↑
- Bitterness builds across a drink rather than announcing itself, so this will read as a longer, drier finish.
- Strength ↑
- Rye Whisky is 45% ABV against 40%. A stronger bottle raises the alcohol in the finished drink and, with it, the perceived dryness and heat.
- Character
- you lose sweet, caramel, vanilla and oaky, and you gain spicy, dry, peppery and assertive. Numbers can't see this: two ingredients can be identically sour and still smell nothing alike.
To correct for it
- Add a little more syrup, a small amount at a time, until the edges come back together.
- Pour slightly less, or lengthen the drink a little, and let the sweetness catch up.
- Pour a little less, or add slightly more dilution, to land where the recipe intended.
High confidenceA very common and widely accepted substitution.Shifts the drinkInstead of Egg White
Best substitute: Aquafaba
This is the foaming agent in this drink.
Quantity: Use about 15ml aquafaba (chickpea brine) in place of egg white
Flavour impact: Produces a very similar foam with a neutral flavour, and makes the drink vegan.
What changes
Aquafaba sits close enough to Egg White that the drink stays recognisably itself.
- Character
- Both are neutral and foamy, and you lose silky, and you gain faintly beany. Numbers can't see this: two ingredients can be identically sour and still smell nothing alike.
Moderate confidenceA well-known bartending substitute for egg white foam.Close swap
Make it better
- The dry shake (no ice, done first) is what builds a stable, silky foam — don't skip it if using egg white.
- Use fresh lemon juice; bottled juice lacks the brightness this drink depends on.
- Balance the syrup to your lemon's tartness — adjust in 5ml increments until it tastes right.
Rescue this drink
- No foam
- Dry shake harder and longer before adding ice, and make sure the egg white is fresh.
- Too tart
- Add 5–10ml more simple syrup and shake briefly again.
- Too sweet
- Add a touch more lemon juice to sharpen the balance.
- Tastes thin, with no weight to itgeneral guidance
- A short shaken drink with nothing rich in it depends on sugar and dilution for body. Try a slightly richer syrup — two parts sugar to one of water rather than equal parts — which adds weight without adding much more sweetness. Egg white or aquafaba does the same job more dramatically, and turns it into a sour.
- The foam collapses, or there is far too much of itgeneral guidance
- Collapsing usually means the dry shake was too short or came after the ice rather than before it. Too much foam is the opposite problem — an over-long dry shake with a small drink underneath. Fifteen seconds dry, then ten with ice, is the ratio to keep; if the head still runs over the glass, the drink is too small for the amount of white in it.
- Shaken too longgeneral guidance
- Ten to fifteen seconds is a full shake. Beyond that the ice fractures and keeps diluting while you are still working, so the drink arrives cold, thin and slightly foamy when it should be sharp. Shake hard and briefly rather than gently and long — the two are not interchangeable.
- Texture looks split or curdledgeneral guidance
- This usually happens when citrus is added too fast to dairy, or the drink sat too long before serving. Add citrus gradually while stirring next time — a split drink often can't be fully recovered once it happens.
- Too sourgeneral guidance
- Add a little more sweetener (simple syrup or the cocktail's usual sweetening ingredient), a small amount at a time.
- Served too warmgeneral guidance
- Chill the glass, ice and every ingredient ahead of time — a warm pour is the fastest way to lose a cold drink's balance. For one serving, there's no real fix beyond rebuilding it properly chilled; for a batch, keep everything refrigerated until the moment of serving and add ice last.
- Over-diluted (tastes watery)general guidance
- Likely shaken too long, or with too much ice surface area. For one serving there's no fixing it after the fact — rebuild with fewer, larger ice cubes and a shorter shake. Planning a batch? Shorten the ice-contact time across the whole round, not just this glass.
- Under-diluted (tastes harsh or too concentrated)general guidance
- For one serving, stir in a few drops of chilled water to open it up. For a batch, extend the shake time slightly on the next round.
- No cocktail shakergeneral guidance
- A clean jar with a tight-fitting lid, shaken vigorously
- Missing the garnishgeneral guidance
- No maraschino cherry? Skip it, or use an extra lemon wheel — the drink doesn't depend on the cherry.
Make ahead & storage
Batch the base, finish at serving
Batch the 2 stable components days ahead and add fresh lemon juice when you pour. The egg white is optional and cannot be batched — shake it in per drink if you want the foam.
Add about 27% water to the batch to replace what the ice would otherwise contribute, or it will pour noticeably harsher than a fresh one.
- Fresh lemon juice:
- Fresh citrus loses its aroma within hours and turns dull. Squeeze it on the day.
- Egg white:
- Optional, and the foam it makes has to be shaken fresh — skip it for a batched version or shake it in per serving.
What it tastes like
The taste, and what drives it
off-dry, very sharp, light — a sour-structured drink served over ice.
Off-dry
Dry → Sweet
Sweetened enough to take the edge off without reading as a sweet drink.
What drives it: Simple syrup — carries the most sugar into the glass.
Very sharp
Soft → Sharp
Bracingly sour — the first sip is meant to wake you up.
What drives it: Fresh lemon juice — supplies the acidity.
Light
Light → Rich
Light-bodied. It refreshes rather than satisfies, which is usually the intention.
What drives it: Bourbon — adds most of the weight.
Bold
Delicate → Bold
Bold. This drink is the loudest thing on the table.
What drives it: Bourbon — is the most concentrated thing in the glass.
What you smell first
- Citrus peelLeads
From Fresh lemon juice, Lemon wheel
- Vanilla
From Bourbon
- Oak
From Bourbon
- Caramel and molasses
From Bourbon
Every aroma here comes from the liquid itself; nothing is layered on top.
How it was worked out
Each reading comes from the recipe's own recorded taste scores combined with what each ingredient contributes, weighted by how much of it is in the glass. Almost everything in this drink has detailed ingredient data behind it.
How balance actually works →If it isn't right
What goes wrong with this drink, and why
Only the faults this particular recipe is actually prone to — each with the likely cause, the adjustment, and what the adjustment costs you.
It's too sweet
- Likely cause
- Simple syrup is carrying the sugar here, and it is the easiest thing in the drink to over-pour — syrup clings to a jigger and a "splash" is rarely the same twice.
- What to change
- Cut simple syrup by about a third and rebuild. If it is already made, a squeeze of citrus is faster than starting again.
- What that does
- The drink will read sharper as well as less sweet, because the acid stops being balanced. That is usually the intention, but it is a bigger change than it sounds.
It's too sour
- Likely cause
- Fresh lemon juice varies more than any other ingredient in the drink. Limes differ by weeks of ripeness, and a sharp one can be half again as acidic as a mild one at the same measure.
- What to change
- Add sweetener a few millilitres at a time rather than diluting — you are correcting a ratio, not a concentration.
- What that does
- Sourness recedes and the drink gains a little weight. Overshoot and you will be reading the too-sweet entry above instead.
It's watery
- Likely cause
- Shaking adds water while it chills, and the two cannot be separated. Wet ice from a freezer door, or small cubes, will over-dilute before the drink is properly cold.
- What to change
- Use bigger, drier, colder ice and stop sooner. Chilling the glass first buys you time you would otherwise spend diluting.
- What that does
- More flavour concentration at the same temperature. Under-dilute instead and the drink will taste harsh — this is a target, not a direction.
It doesn't smell of anything
- Likely cause
- This drink's aroma comes from citrus peel and vanilla, carried in the liquid. Serving it too cold suppresses that: volatile compounds do not leave a very cold drink.
- What to change
- Let it sit for a minute before drinking, and use a glass that narrows towards the rim to concentrate what does escape.
- What that does
- More of the aroma escapes and the drink reads as more intense. The cost is temperature: a drink left to warm also dilutes faster, so this is a trade against how long it stays right.
It tastes one-dimensional
- Likely cause
- With 3 components there is nowhere for complexity to hide — a sour-structured drink is exposed by design, so a dull one is usually a dull ingredient rather than a missing step.
- What to change
- Change the quality of what is there before adding anything new: fresh citrus rather than bottled, a better base bottle, a dash of bitters. Bitters add layers at a scale nothing else matches.
- What that does
- More going on at the same strength and sweetness. Adding a whole extra ingredient instead usually produces a muddier drink rather than a deeper one.
Taste profile
- Sweetness
- 2/5
- Sourness
- 4/5
- Bitterness
- 0/5
- Strength
- 3/5
- Fruitiness
- 1/5
- Freshness
- 2/5
- Creaminess
- 1/5
- Smokiness
- 0/5
Nutrition & alcohol
Estimate onlyBased on a standard 60ml pour with egg white; omitting the egg white slightly lowers volume and calories.- Calories
- 170 kcal
- Sugar
- 9 g
- Carbohydrates
- 11 g
- Alcohol units (UK)
- 2.4
- US standard drinks
- 1.52
- ABV
- 18%
- Serving size
- 150 ml
Show calculation assumptions
Source: Calculated from standard measures
Calorie breakdown: ~149 kcal from alcohol, ~21 kcal from sugar and mixers.
Likely range: 128–213 kcal, reflecting the confidence level above — not a lab-measured figure.
Assumes bourbon at 40% ABV and includes a half egg white.
These figures are estimates, not laboratory measurements — individual tolerance to alcohol varies. See our responsible drinking guidance.
Variations
Prefer it alcohol-free?
Try the Alcohol-Free Whiskey Sour, built to carry the same flavour without any alcohol.
Boston Sour
Float 10ml of red wine on top after pouring for a fruitier, wine-tinted finish.
New York Sour
The same float, using a bold, tannic red wine for contrast against the sweetness.
What kind of drink this is
The structure behind the recipe
A shaken build: a sour-structured whisky-based drink, served over ice — foamed in the mouth.
Sour-structured
Something sour and something sweet held in balance over a base — the structure behind the whole sour family and everything descended from it.
Base
Bourbon
Spirit in the largest measure — read as the base.
Sour element
Fresh lemon juice
A short, sharp measure — recorded acidity 5/5, and nothing sharper is poured short, so this is the sour element.
Sweet element
Simple syrup
A syrup — its whole job in the drink is to sweeten and to add a little body along with it.
Bitter element
Angostura bitters (optional)
Bitters: measured in dashes, used to season the drink rather than to flavour it outright.
Foaming agent
Egg white (optional)
Egg builds foam rather than richness — it changes the texture, not the flavour.
Drinks built this way are collected as the Sour family.
5 components' roles areworked out from the ingredient's category and recorded taste attributes rather than set by hand — the reasoning is shown above so you can disagree with it.
Technique
shaken
Ice is thrown against the liquid and against itself, chipping fragments off and driving air through the mix. Chilling, dilution and aeration all happen at once and cannot be separated.
A lighter, briefly frothy body and a cloudy appearance that settles as it stands. The aeration blunts alcoholic heat, which is why a shaken drink tastes softer than a stirred one of the same strength.
What it ruins: Clarity, and any carbonation. A shaken spirits-only drink arrives cloudy with ice shards floating in it, and shaking anything fizzy is the one rule with no exceptions.
Everything about shaking →How the technique works →Dilution
During mixing, then strained
Water from ice typically makes up around 30% of the finished drink for a shaken build (commonly 25–35%). Dilution is an ingredient here, not a side effect.
Why dilution is an ingredient →Served
Over ice
Rocks glass · 150ml
Served on ice, so it keeps chilling in the glass. A larger, colder, slower drink than the same spirits served straight up.
Texture and aroma
A foaming agent builds a dense head that softens the first sip and carries aroma up to the nose.
These components are doing aromatic work: you meet them at the nose before the first sip, and they shape how everything underneath reads.
Where to go from here
Each of these is here because of something specific about this drink, not as a standard set of links.
Why this drink matters
This one carries one kind of the evidence used to identify influential drinks — each with a test you can check rather than a ranking.
Drinking this with food: seafood, oysters and anything raw
On its recorded taste scores this drink meets the test for seafood, oysters and anything raw — the page explains the principle behind it rather than simply asserting the pairing.
Understanding why drinks work
Once you can make this, the intermediate path is where recipes stop being things to memorise.
Where this fits in a home bar
Bourbon is bottle 4 in the order that unlocks the most drinks — buying it opens up 7 recipes beyond the ones before it.
Where it comes from
Origin and family
Origin of the Whiskey Sour
American classic dating to the mid-19th century, one of the original 'sour' family cocktails.
Family
Sour2 parts spirit · 1 part citrus · 1 part sweetener — shaken, strained, served up or over ice.
On drinks history
Cocktail origin stories are frequently repeated and rarely evidenced. Our history section separates what is documented from what is folklore rather than picking whichever version reads best.
History and culture →Try this next
- Gold Rush
Gold Rush
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- Caipirinha
Caipirinha
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Long Island Iced Tea
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Use up your ingredients
Bought a bottle just for this? Here's what else it's good for.
Related tools
Scale this for a party
Work out bottles, mixers, ice and total alcohol units for any number of guests.
Recipe confidence
Well-documented classic with widely agreed core proportions.