A Lemon Basil Cooler blends zesty lemon with fragrant basil for a bright, refreshing cocktail. Made with a simple basil-infused syrup, this summer sipper combines tangy citrus and delicate herbal notes. Served over ice and finished with bubbly club soda, it’s an easy, crowd-pleasing drink for warm-weather gatherings.

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about this lemon basil cocktail
Pairing lemon and basil creates a cocktail that’s both bright and aromatic. Fresh lemon delivers crisp citrus acidity while basil contributes a subtle peppery, floral layer. Together they produce a balanced, refreshing drink that works well as a casual happy hour cocktail or a party sipper.
The basil flavor comes from a homemade basil simple syrup made by steeping fresh basil in a 1:1 sugar-and-water syrup. The syrup keeps well in the fridge for up to a month and can be used in other drinks and non-alcoholic recipes, so it’s a small effort that pays off across many uses.
This lemon basil cocktail is ideal for:
- Light, sunny happy hours
- Pairing with grilled or rich mains to brighten the meal
- Sipping outside on warm afternoons
2025 update: Originally published September 12, 2014, this recipe has been refreshed with clearer instructions, updated tips, and new photos.

Why You’ll Love This Recipe
This zesty, herb-forward cocktail captures summer in a glass and is easy to prepare.
- Light and refreshing for warm weather
- Uses fresh basil for bright herbal notes
- Only four main ingredients
- Easy to batch for guests
- Looks elegant while remaining simple to make
ingredients
Fresh basil simple syrup: Make a basil simple syrup by adding fresh basil leaves to a 1:1 mixture of sugar and water and gently heating until the sugar dissolves, then steeping to extract the basil flavor.
Fresh lemon juice: For the cleanest, brightest taste use freshly squeezed lemon juice rather than bottled juice.
Vodka: Choose a vodka you enjoy. Mid-range options work well in mixed cocktails.
Club soda: Use club soda, soda water, or sparkling water to add effervescence and lighten the drink.
this recipe’s must haves
Basic bar tools are all you need: a jigger for measuring, a cocktail shaker (or a mason jar if you don’t have a shaker), and a strainer. Serve in tall highball or pint glasses filled with ice; chilled glasses elevate the experience.
Tip: A mason jar works as an effective shaker in a pinch.

here’s how to make a lemon basil cocktail
make basil simple syrup
Combine equal parts sugar and water with a handful of basil leaves in a small saucepan. Warm gently over medium heat, stirring until the sugar dissolves (do not boil). Remove from heat, let the basil steep for about 10 minutes, then strain and cool completely.
shake
Fill a cocktail shaker with ice. Add 1 1/2 oz basil simple syrup (or your preferred amount), 1 oz fresh lemon juice, and 2 oz vodka. Shake vigorously for 15–30 seconds until well chilled.
strain
Strain into a glass filled with ice. Top with club soda (about 2 oz or to taste) and garnish with a lemon wheel and a basil sprig if desired.
More simple syrup ideas: lemon, strawberry, cherry, and cinnamon syrups all work well in cocktails and nonalcoholic drinks.
Tips for Success
Use fresh lemon juice. With just a few ingredients, freshness matters—fresh juice tastes brighter and cleaner than bottled options.
Use fresh basil. Fresh basil yields a bright, clean flavor; dried basil can become bitter and lacks the floral aromatics.
Make the basil syrup ahead. The syrup keeps up to one month refrigerated, making it easy to prepare cocktails quickly when guests arrive.

FAQs
I recommend fresh lemon juice for the best balance and brightness; store-bought lemon juice is often more tart and less vibrant.
Yes. For about 8 servings, combine 2 cups vodka, 1 1/2 cups basil simple syrup, and 1 cup lemon juice in a pitcher with ice. Stir and top with 2 cups club soda. Garnish with basil and lemon slices.
For a few drinks, shake vodka, lemon juice, and basil syrup and chill in the fridge; add ice and soda when serving. For larger batches, mix the non-carbonated ingredients in a pitcher and add club soda just before serving to preserve fizz.
Fresh basil is recommended. Dried basil won’t provide the same bright, aromatic flavor and can taste flat or bitter when infused.
Yes—omit the vodka and increase the club soda for a sparkling basil lemonade.
After cooling, store the syrup in an airtight container in the refrigerator for up to one month.
Need more cocktail inspiration? Browse other cocktail recipes for ideas and pairings.

💬 behind the recipe
This cocktail began as a way to use an abundance of basil from the garden. The basil simple syrup quickly proved versatile beyond cocktails—try it in iced tea, lemonade, or drizzled over fruit or ice cream.
what to serve with a lemon basil cooler cocktail
The cocktail’s bright acidity and herbaceousness pairs well with light, fresh appetizers and also cuts through richer BBQ or grilled dishes. Consider seafood appetizers, bright bruschetta, or smoky mains like pulled pork or ribs for contrast.
looking for more drinks with basil in them?
Try other basil-forward cocktails such as strawberry-basil margaritas, lemon basil gin & tonic, blackberry basil bourbon smash, or frozen strawberry-basil daiquiris.

If you make this lemon basil cooler, consider leaving a rating or comment—feedback helps refine and share what works best. Tag the recipe on social media if you’d like to share photos of your version.

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lemon basil cooler
ingredients
- 1 cup sugar
- 1 cup water
- 12–14 basil leaves
- 2 oz vodka
- 1 1/2 oz basil simple syrup
- 1 oz freshly squeezed lemon juice
- 2 oz club soda (or to taste)
- Garnish: lemon wheel and basil sprig
instructions
- To make the basil simple syrup: combine sugar, water, and basil leaves in a small saucepan. Warm to a simmer over medium heat, stirring until the sugar dissolves. Remove from heat and steep 10 minutes. Strain and cool completely.
- To make the cocktail: add basil simple syrup, vodka, and lemon juice to a shaker filled with ice. Shake well until chilled.
- Strain into a glass filled with ice. Top with club soda and garnish as desired.