Looking for a bright, citrus-forward twist on a classic cocktail? The Lemon Burst Whiskey Sour is a bold yet balanced drink that’s perfect for any season. This cocktail packs a refreshing punch. The addition of egg white creates a rich, velvety foam that elevates the texture and presentation. It’s the ultimate lemon whiskey cocktail for those who love a tart, smooth sipper with depth and character.
To truly impress, garnish your Lemon Burst Whiskey Sour with a brûléed lemon slice—a caramelized citrus accent that adds a touch of flair and smoky sweetness. This elegant drink is perfect for cocktail parties, happy hours, or an elevated night in. Whether you’re a seasoned mixologist or a home bar enthusiast, this citrus whiskey sour variation is simple to make and unforgettable to taste. For a unique take on the traditional whiskey sour, the Lemon Burst is a must-try.
Ingredients
- 2 oz whiskey
- 1/2 oz Cointreau
- 3/4 oz lemon simple syrup
- 1 oz lemon juice
- 1 egg white
- lemon slice, brûléed
For the lemon simple syrup
- 4-5 lemons
- 1/2 cup granulated sugar
- 1/2 cup lemon juice
Why you’ll love this lemon burst whiskey
- Bright, Bold Flavor – The fresh lemon juice and lemon simple syrup bring a vibrant citrus punch that wakes up your taste buds.
- Perfectly Balanced – Smooth whiskey and a hint of orange liqueur create a layered flavor profile with just the right amount of sweetness.
- Velvety Texture – Egg white adds a rich, creamy foam that makes every sip silky and smooth.
- Brûléed Lemon Garnish – A caramelized lemon slice adds a smoky-sweet finish and stunning visual appeal.
- Elevated Yet Easy – Impressive enough for guests, simple enough for a cozy night in—this cocktail is as versatile as it is delicious.
- Unique Twist on a Classic – A fresh take on the whiskey sour that feels familiar yet totally new.
Step by step instructions
Note: Find the full ingredient measurements and instructions in the recipe card at the bottom of this page.
For the lemon simple syrup:
- Zest the lemons until you have approximately 3 tablespoons of lemon zest. In a bowl, rub the lemon zest and granulated sugar together to release the lemon oil for more flavor.
- In a saucepan, whisk the lemon zest and sugar mixture with the lemon juice.
- Bring to a simmer over medium heat until the sugar is dissolved completely. Remove from heat and strain through a fine mesh sieve.
- Let cool and then transfer to a glass jar or other airtight container. Store in the fridge.
For the cocktail:
- In a cocktail shaker, add whiskey, Cointreau, lemon juice, lemon simple syrup, and egg white. Shake for 30 seconds without ice. Add ice and shake for another 30 seconds. Strain into a chilled cocktail glass. Garnish with a brûléed lemon.
- Brûléed lemon: Add a small amount of sugar on top of a thin slice of lemon. Using a kitchen torch, torch the sugar until it has begun to caramelize.
Frequently asked questions
Bourbon is a great choice for a smooth, slightly sweet base, but rye whiskey can add a spicier edge if you prefer more bite.
Egg white gives the cocktail its signature silky foam and texture, but you can skip it if preferred or substitute with aquafaba (chickpea water) for a vegan alternative.
You can pre-mix everything except the egg white and shake fresh when ready to serve. The foam is best when made and served immediately.
Simply slice a lemon, sprinkle one side with sugar, and torch it until caramelized. It adds a touch of smoky sweetness and makes the drink look stunning.
Absolutely! It’s eye-catching, crowd-pleasing, and easy to batch (just leave the egg white out of the batch and shake each serving individually).
Tips for the best lemon burst whiskey sour
- Use Fresh Lemon Juice – Freshly squeezed lemon juice makes a huge difference in brightness and flavor compared to bottled juice.
- Choose Quality Whiskey – A mid-range bourbon or rye whiskey adds depth and character without overpowering the citrus.
- Brûlée the Lemon Just Before Serving – Torch your lemon slice right before garnishing to keep the caramel crisp and aromatic.
- Don’t Skip the Orange Liqueur – That half ounce adds a subtle sweetness and citrus complexity that rounds out the cocktail beautifully.
- Chill Your Glass – Serve in a chilled coupe or rocks glass to keep the drink cold and refreshing longer.
Did you make this?
Please rate the recipe and leave a comment below. This helps other readers decide if this is a great recipe to bake. Be sure to tag me on Instagram using @schmidtybakes so I can see. I love to see what you’re baking!
Lemon Burst Whiskey Sour
Ingredients
For the cocktail
- 2 oz whiskey
- 1/2 oz Cointreau
- 1 oz lemon juice
- 3/4 oz lemon simple syrup
- 1 egg white
- lemon slice (brûléed )
For the lemon simple syrup
- 4-5 lemons
- 1/2 cup granulated sugar
- 1/2 cup lemon juice
Instructions
For the lemon simple syrup
- Zest the lemons until you have approximately 3 tablespoons of lemon zest. In a bowl, rub the lemon zest and granulated sugar together to release the lemon oil for more flavor.
- In a saucepan, whisk the lemon zest and sugar mixture with the lemon juice.
- Bring to a simmer over medium heat until the sugar is dissolved completely. Remove from heat and strain through a fine mesh sieve.
- Let cool and then transfer to a glass jar or other airtight container. Store in the fridge.
For the cocktail
- In a cocktail shaker, add whiskey, Cointreau, lemon juice, lemon simple syrup, and egg white. Shake for 30 seconds without ice. Add ice and shake for another 30 seconds. Strain into a chilled cocktail glass. Garnish with a brûléed lemon.
- Brûléed lemon: Add a small amount of sugar on top of a thin slice of lemon. Using a kitchen torch, torch the sugar until it has begun to caramelize.
The nutrition facts provided are calculated using a third-party tool and are estimates only. Actual nutritional content may vary based on the ingredients and brands you use, as well as portion sizes. For accurate results, please consult a registered dietitian or nutritionist.
