Extra strong Whisky sourCocktail recipe
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Extra strong Whisky sour sits firmly in the Whiskey Sour family: a bold, citrus-led bourbon cocktail softened with sugar and often finished with a silky egg-white foam. The broader sour template is one of the oldest in mixed drinks—spirit, citrus, and sweetener—and it remains a go-to because it balances punchy strength with refreshing lift. This “extra strong” take leans into the whiskey-forward side of the style, giving you a more assertive sip while keeping the classic sweet-sour structure intact.
You’ll find bourbon’s warm, rounded character at the center, with lemon juice bringing a clean, sharp tartness that cuts straight through. Gomme syrup adds sweetness and a smooth, slightly richer texture that helps knit the bourbon and lemon together without tasting thin. Egg white contributes a creamy, velvety mouthfeel and a soft, airy cap that mellows the edges of the citrus and makes the whole drink feel more substantial.
Serve it in a lowball when you want a short, satisfying sour that drinks like a proper whiskey cocktail rather than a light refresher. It suits bourbon lovers who still appreciate balance, and it works especially well as an early-evening opener or a slow, after-dinner pour when you’re in the mood for something both bracing and plush.
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Lowball / rocks glass
Ingredients
Cocktail Colin says:
Bourbon leads with warm, oaky sweetness, sharpened by lemon juice’s bright bite, while gomme syrup rounds the edges into a firm sweet‑tart core and egg white adds a creamy, meringue-like cushion that softens the citrus. It works because the lemon juice keeps the bourbon from feeling heavy and the egg white smooths the gomme syrup’s sweetness; ideal for sour lovers who want a punchier whiskey-forward pour.
Method
How to make a Extra strong Whisky sour
- Bourbon 40ml, Lemon juice 20ml, Gomme syrup 10ml, Egg 1 egg white
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- Pour all ingredients into a shaker with ice
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- Shake well then strain into chilled lowball glass filled with ice and serve
Power tips
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Find out more- Dry shake (shake without ice) first to fully emulsify the egg white, then shake again with ice. This will create a thicker and more luxurious foam.
- Use a fine granulated gomme syrup or even make your own. The added texture will bring a silky smooth finish to the drink.
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FAQ's
Why is the egg white included in the Extra strong Whisky sour, and how does it affect the cocktail?
The egg white in the Extra strong Whisky sour cocktail is used to create a smooth, frothy texture and to add a silky mouthfeel to the drink. When shaken vigorously, the egg white emulsifies with the other ingredients, creating a creamy top layer that enhances the overall drinking experience. It's a classic technique used in many sour cocktails to balance the acidity of the lemon and add a visually appealing foam.
Can I use a different type of syrup instead of Gomme syrup in the Extra strong Whisky sour?
Yes, you can substitute Gomme syrup with other syrups in the Extra strong Whisky sour. Simple syrup is a common alternative, which you can easily make by dissolving equal parts sugar and water. For a different flavor profile, maple syrup or honey syrup can also be used as substitutes, though keep in mind they will slightly alter the taste of your cocktail.
What are the best garnishes to use for an Extra strong Whisky sour?
For an Extra strong Whisky sour, classic garnishes include a slice of lemon or orange and a cherry. These not only add an aesthetic touch but also complement the drink's flavors. An orange twist or a lemon twist can also be used for a more pronounced citrus aroma. The combination of these garnishes accentuates the cocktail's sweet and sour balance.
How does the alcohol content of an Extra strong Whisky sour compare to a standard Whisky sour?
An Extra strong Whisky sour typically has a higher alcohol content due to the increased proportion of bourbon compared to a standard Whisky sour. While traditional recipes hover around 15-20% alcohol content, the Extra strong version reaches approximately 22.54%, making it a stronger choice for those who prefer a more potent cocktail experience.
What occasions are most suitable for serving an Extra strong Whisky sour?
An Extra strong Whisky sour is versatile and can suit various occasions, from casual gatherings to more formal events. Its sophisticated yet accessible profile makes it a great choice for cocktail parties, dinner parties, or a relaxing evening at home. Additionally, its strong flavor profile makes it a perfect choice for those looking to enjoy a bold cocktail experience on occasions that call for celebratory drinks or something to warm up during chilly nights.
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