Lemon Basil Spritzer Mocktail Recipe

Combine sugar and water in a small saucepan. If using, add the lemon zest to infuse a bright citrus aroma.

Heat the mixture over medium heat, stirring occasionally, until the sugar completely dissolves and the liquid becomes clear (about 3–5 minutes). Do not boil vigorously.

Remove from heat, let the syrup cool to room temperature. If you added lemon zest, strain it out. Transfer the syrup to a clean jar and refrigerate until cold. Yields about 1 cup; use 1/2 cup for the recipe and reserve the rest for other drinks (keeps refrigerated for up to 2 weeks).

Prep

Juice fresh lemons until you have 1 cup (about 4–6 medium lemons depending on juiciness). Thinly bruise 8 of the basil leaves by clapping them between your palms or gently tearing to release oils; reserve 4 leaves whole for garnish.

Make Basil-Infused Lemon Mixture

In a large pitcher, add the fresh lemon juice, 1/2 cup chilled simple syrup, and the bruised basil leaves. Use a wooden spoon or muddler to gently muddle the basil in the lemon-syrup mixture for about 20–30 seconds—just enough to release aroma and flavor without shredding the leaves into bits.

Assemble

Fill the pitcher with 3 cups of ice (or divide ice among individual serving glasses). Pour the basil-lemon concentrate over the ice. Slowly add 3 cups of chilled club soda to the pitcher and gently stir once to combine. Taste and adjust sweetness by adding up to 2 tablespoons more simple syrup if desired.

Serve

Pour into 4 serving glasses (about 1 cup per glass). Garnish each glass with a lemon slice and a whole basil leaf. For a fizzy presentation, add club soda to each glass immediately before serving. If using crushed ice, spoon crushed ice into glasses before pouring.

Storage / Notes

If not serving immediately, keep the basil-lemon concentrate (lemon juice + syrup + basil) chilled separately from club soda for up to 24 hours; add soda just before serving to retain fizz. Leftover simple syrup keeps refrigerated for up to 2 weeks.