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A reliable whiskey sour recipe uses 2 ounces of whiskey, ¾ ounce of fresh lemon juice, and ¾ ounce of simple syrup, shaken hard with ice and served over fresh ice; add egg white when you want a silkier, softer-textured drink.
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Classic Whiskey Sour Recipe
This ratio gives you a balanced drink with enough whiskey character, noticeable lemon acidity, and moderate sweetness. It is a useful starting point because you can adjust each part without losing the cocktail’s basic structure.
- 2 ounces whiskey: Bourbon gives a round, vanilla- and caramel-led result; rye produces a drier, spicier sour.
- ¾ ounce fresh lemon juice: Provides the sharp acidity that defines the drink.
- ¾ ounce simple syrup: Softens the lemon and helps the flavors blend.
- 4–6 large ice cubes: Chills and dilutes the cocktail during shaking.
- Optional egg white: Use ¾ ounce, or the white from one small egg, for foam and a fuller mouthfeel.
- Optional garnish: A lemon peel, lemon wheel, or cocktail cherry.
Equipment and Ingredient Specifications
You do not need specialized bar equipment, but the size and condition of each item affect the result. A two-piece shaker or three-piece cobbler shaker works well. If you do not have a shaker, use a clean jar with a secure lid, leaving enough empty space for the ice to move.
| Item | Recommended specification | Why it matters | Practical substitute |
|---|---|---|---|
| Whiskey | 80–100 proof, 2 ounces | Higher proof stands up to lemon and dilution | Bourbon or rye already in your cabinet |
| Lemon juice | ¾ ounce, squeezed just before mixing | Fresh juice has brighter aroma and acidity | Bottled juice in a pinch, with a likely flatter flavor |
| Simple syrup | ¾ ounce of 1:1 syrup | Disperses quickly in a cold drink | ½ ounce rich 2:1 syrup, then adjust |
| Shaker | 18–28 ounce capacity | Leaves room for ice and vigorous movement | 500–750 ml leakproof jar |
| Ice | 4–6 large cubes for shaking; 1 large cube or 4–6 cubes for serving | Controls chilling and dilution | Regular freezer ice, used generously |
| Glass | 8–10 ounce rocks glass | Provides room for the drink and serving ice | Small tumbler or lowball glass |
How to Make a Whiskey Sour
1. Prepare the syrup and lemon
Make simple syrup by combining equal volumes of granulated sugar and water. For a small batch, use ½ cup sugar and ½ cup water. Warm the mixture just until the sugar dissolves, then cool it completely and refrigerate it in a clean, sealed container. A 1:1 syrup keeps the recipe easy to measure and blends better than dry sugar.
Squeeze the lemon immediately before mixing. One medium lemon often yields about 1½ to 2 ounces of juice, though yield varies. Strain out seeds and large pulp if you prefer a smooth drink. Measure the juice rather than relying on the size of the lemon, because too much acidity can overwhelm the whiskey.
2. Measure the ingredients
Add 2 ounces whiskey, ¾ ounce lemon juice, and ¾ ounce simple syrup to the shaker. Measuring is more dependable than free-pouring, particularly when adjusting the recipe. The standard total before dilution is 3½ ounces, so the finished drink will usually occupy about 4 to 5 ounces after shaking melts some ice.
3. Shake with ice
Fill the shaker with 4 to 6 large, solid ice cubes. Seal it and shake firmly for about 12 to 15 seconds. The goal is not only to chill the ingredients but also to add controlled water from melting ice. A weak or very short shake can leave the cocktail hot, sharp, and overly concentrated.
Strain into a rocks glass filled with fresh ice. Using fresh serving ice prevents the small, rapidly melting pieces left in the shaker from diluting the drink too quickly. Garnish with a lemon peel or cherry if desired.
Egg-White Version for a Smoother Texture
Egg white changes the texture more than the flavor. It creates a dense foam and a rounder sensation that can make the lemon seem less aggressive. Because egg white needs agitation to emulsify, use a two-stage shake.
- Add 2 ounces whiskey, ¾ ounce lemon juice, ¾ ounce simple syrup, and ¾ ounce egg white to the shaker.
- Shake without ice for 10 to 15 seconds. This is called a dry shake and helps build the foam.
- Add 4 to 6 ice cubes and shake again for 12 to 15 seconds.
- Strain into a chilled rocks glass, either over fresh ice or without ice.
- Wait 10 to 20 seconds for the foam to settle before adding a garnish.
Use pasteurized liquid egg white if you want a measured, consistent ingredient. Keep eggs refrigerated and avoid serving an egg-white cocktail to anyone who should avoid raw or undercooked egg products. Aquafaba, the liquid from cooked chickpeas, can provide foam without egg, although its flavor and foam stability vary by brand.
How to Adjust Tartness, Sweetness, and Strength
The easiest way to customize this whiskey sour is to change only one component at a time. Begin with the standard 2:¾:¾ ratio, taste, and then make a small correction.
| Preference | Whiskey | Lemon juice | Sweetener | Expected result |
|---|---|---|---|---|
| Balanced classic | 2 ounces | ¾ ounce | ¾ ounce | Even whiskey, acidity, and sweetness |
| Less tart | 2 ounces | ½ ounce | ¾ ounce | Softer acidity with a sweeter finish |
| Brighter and drier | 2 ounces | ¾ ounce | ½ ounce | More lemon definition and less residual sweetness |
| Stronger whiskey profile | 2½ ounces | ¾ ounce | ¾ ounce | More spirit-forward, with slightly less perceived sweetness |
| Longer, lighter drink | 2 ounces | ¾ ounce | ¾ ounce | Add 1–2 ounces chilled soda water after straining |
For a rough sweetness calculation, ¾ ounce of 1:1 syrup contains approximately ⅜ ounce of sugar by volume. If you replace it with ½ ounce of 2:1 rich syrup, you use a similar amount of sugar while adding less water. That version tastes denser and is useful when you want a compact, whiskey-forward cocktail.
Choosing the Whiskey
Bourbon is the most forgiving choice for a first whiskey sour. Its natural sweetness and oak notes support lemon without requiring much adjustment. Rye is better when you prefer peppery spice and a drier finish. A blended American whiskey can work well when you want a lighter profile.
Avoid using an especially delicate whiskey with a large amount of lemon unless you reduce the acid to ½ ounce. Conversely, a very high-proof whiskey may need more dilution and can benefit from a slightly longer shake. The cocktail should taste integrated rather than merely strong.
Common Mistakes and Ownership Realities
- Using old lemon juice: Juice kept for several days loses aroma and may taste dull or metallic. Make only what you need when possible.
- Skipping measurement: An extra ¼ ounce of lemon or syrup is a substantial change in a 3½-ounce pre-dilution drink.
- Using too little ice: A half-filled shaker warms quickly and may not dilute evenly. Fill it at least two-thirds full.
- Reusing wet ice: Ice from the shaker has already started melting and can make the serving drink watery.
- Neglecting the shaker seal: Citrus and syrup leave sticky residue around gaskets, strainers, and lids. Rinse immediately, wash with warm soapy water, and dry parts separately.
- Storing syrup too long: Refrigerate homemade syrup in a clean container and discard it if it develops cloudiness, bubbles, mold, or an off smell.
Final Recipe at a Glance
Combine 2 ounces bourbon or rye, ¾ ounce fresh lemon juice, and ¾ ounce 1:1 simple syrup in a shaker. Add ice and shake for 12 to 15 seconds. Strain over fresh ice in an 8- to 10-ounce rocks glass. For a foamy version, add ¾ ounce egg white, dry-shake first, then add ice and shake again. Reduce the lemon for a gentler drink, reduce the syrup for a drier one, or add soda water for a lighter finish.