Whiskey Sour Recipe UK: A Balanced Classic Cocktail

A whiskey sour is a classic cocktail made with whiskey, fresh lemon juice and sugar syrup, shaken with ice and served chilled. This UK-friendly version uses easy-to-measure quantities and an optional egg white for a soft, foamy top; its balance of citrus, sweetness and spirit is easy to adjust to your taste.

Ingredients

50 ml (3 tbsp plus 1 tsp) bourbon whiskey
25 ml (1 tbsp plus 2 tsp) freshly squeezed lemon juice
15 ml (1 tbsp) simple syrup
1 large egg white, about 30 ml (2 tbsp), optional; use pasteurised egg white if serving guests who need extra caution with raw egg
1 cup (about 140 g) ice cubes, plus extra for serving if desired
2 dashes Angostura bitters, optional
1 lemon wheel or strip of lemon peel, to garnish
1 cocktail cherry, optional

Instructions

Chill your glass if you like. Put a rocks glass in the freezer while you gather the ingredients, or fill it with ice water for a few minutes. Empty it before serving. This is optional, but a cold glass helps keep the finished drink cool for longer.
Measure the ingredients. Pour the bourbon, lemon juice and simple syrup into a cocktail shaker. Add the egg white if using. For a drier drink, start with a little less syrup; you can taste and adjust the balance next time rather than adding more after the cocktail has been shaken.
Dry shake if using egg white. Seal the shaker and shake firmly for about 10 seconds without ice. This helps the egg white create an even foam. If you are not using egg white, skip this step and go straight to shaking with ice.
Shake with ice. Add the measured ice, seal the shaker securely and shake hard for 10–15 seconds, until the outside feels very cold. A firm shake chills and dilutes the drink while combining the lemon and syrup; a gentle stir will not create the same airy texture, especially when egg white is included.
Strain and finish. For a smooth drink, strain into the prepared rocks glass over fresh ice, or serve it straight up in a chilled coupe. If you used egg white, a fine-mesh strainer can catch small ice chips and leave a neater foam. Add the bitters over the foam if desired, then garnish with lemon and a cherry.

Serve the cocktail as soon as it is made, while the foam is fresh and the ice has not diluted the balance. This drink contains alcohol and is for adults of legal drinking age only; drink responsibly.

Tips

Use fresh lemon juice. Bottled juice can taste flatter or more sharply acidic, and the difference is noticeable in a short ingredient list. Roll the lemon firmly on the worktop before cutting it to help release more juice. Strain out seeds, but a little pulp is fine.
Make simple syrup at home. Stir equal volumes of sugar and hot water until the sugar dissolves, then cool completely before using. For example, combine ½ cup (100 g) sugar with ½ cup (120 ml) hot water. This makes more than one cocktail; keep the extra refrigerated in a clean, covered container and use within about two weeks.
Adjust sweetness in small steps. Lemons vary in acidity, and different bourbons have different levels of sweetness. If the first sip is too tart, add a small splash of syrup to your next shake; if it is too sweet, reduce the syrup or add a little more lemon. Avoid making a large change all at once.
Choose the egg-white option carefully. Egg white adds a silky texture, but it is not essential to the drink. Raw egg can carry food-safety risks; pasteurised eggs are safest for pregnant, elderly or immune-compromised guests. Omit the egg white if you are unsure, and never assume that lemon juice makes raw egg safe.

Serving Suggestions

A whiskey sour works well as an aperitif or as a single cocktail to enjoy alongside a relaxed meal. A rocks glass with one large cube melts more slowly than a glass filled with small cubes, helping the drink stay balanced. If serving it straight up, use a chilled coupe and drink it promptly, as it has no ice in the glass to keep it cold.

The lemon garnish adds a fresh aroma. Expressing a strip of lemon peel over the surface—twisting it skin-side down so a little of its fragrant oil falls onto the drink—gives a brighter citrus scent without adding much juice. A cherry is a familiar optional garnish, but the cocktail is complete without one. If making drinks for a group, shake each serving separately or in small batches rather than pouring a large unshaken mixture over ice.

Variations

Use a different whiskey: Bourbon is a dependable choice because its rounded, often gently sweet flavour sits comfortably with lemon. Rye whiskey usually makes a drier, spicier sour. Irish whiskey can give a lighter, softer result. Scotch whisky also works, though its flavour varies widely; a smoky Scotch will make a more assertive drink. In the UK, “whisky” is common for Scotch and “whiskey” for bourbon and Irish styles, but the cocktail name is generally written “Whiskey Sour.”

Make it without egg: Leave out the egg white and shake the remaining ingredients with ice. The taste stays much the same, but the drink will be less foamy and have a lighter texture. You can also try a small amount of aquafaba, the liquid from a tin of chickpeas, for foam; begin with about 15 ml (1 tbsp), since its flavour and foaming strength can vary.

Try a New York sour: Make the standard whiskey sour without egg white, strain it over ice, then slowly pour about 15 ml (1 tbsp) red wine over the back of a spoon so it floats on top. The wine adds a dry, fruity layer. This is a variation rather than a different method for the base recipe, so keep the whiskey, lemon and syrup proportions balanced.

Change the sweetener: Honey syrup, made by mixing honey with warm water until pourable, can replace simple syrup in equal measure. It brings a floral, rounded sweetness and can make the drink taste fuller. Maple syrup is another option, though its distinct flavour will be more noticeable; start with slightly less, then adjust to taste.

Storage and Reheating

A whiskey sour is best mixed and served immediately. Ice melts quickly in a prepared cocktail, weakening the flavour and flattening the foam, so do not store a finished drink with ice. If it contains egg white, make only what you plan to serve at once; refrigerate any leftovers within 2 hours, but for the best quality and safest handling, avoid saving a partly consumed egg-white cocktail. Discard it if it has been left at room temperature for more than 2 hours.

For a small amount of advance preparation, measure the bourbon and simple syrup into a clean, covered container and refrigerate for up to 24 hours. Add freshly squeezed lemon juice just before shaking for the brightest flavour. Do not add ice until you are ready to shake, and do not store the egg-white version as a batch. Reheating is not appropriate for this drink.

Frequently Asked Questions

What whiskey is best for a whiskey sour?

Bourbon is a popular, easy-to-find choice and gives the cocktail a rounded flavour that pairs well with lemon. Rye is a good option if you prefer a drier, spicier finish. There is no single required whiskey: choose a style you enjoy drinking, and remember that a very smoky whisky will noticeably change the character of the cocktail.

Can I make a whiskey sour without egg white?

Yes. Egg white is optional and is used for texture and foam, not to make the cocktail taste sour. Shake the bourbon, lemon juice, syrup and ice together, then strain as directed. The result will be less creamy and will not have the same foamy cap, but it will still be a whiskey sour.

Why is my whiskey sour too sour?

The lemon may be particularly tart, or the syrup may not be sweet enough for your preference. Add a little more simple syrup to the next serving, keeping the change small so the drink does not become cloying. Check that you measured the lemon rather than estimating by eye, since a little extra juice can shift the balance.

Can I use bottled lemon juice?

You can, but freshly squeezed lemon juice generally gives a cleaner, livelier flavour. Bottled juice may taste less fragrant or more sharply acidic, so measure it carefully and adjust the syrup only after tasting. Avoid using sweetened lemon cordial as a direct substitute, because it adds sugar and changes the drink’s proportions.

Can I make whiskey sours ahead for a party?

You can pre-measure the bourbon and syrup and chill them, then add fresh lemon juice and shake each drink when it is time to serve. Avoid batching cocktails with raw egg white or leaving a large pitcher sitting over ice. Shaking in individual or small batches gives a colder drink and a fresher foam.

What can I use instead of Angostura bitters?

Bitters are optional, so you can simply leave them out. If you have another aromatic bitters, a couple of dashes can add a different spiced aroma, but the flavour will not be identical. A lemon twist is an easy way to add fragrance when you do not have bitters on hand.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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