
Bright, citrusy, and endlessly refreshing, this homemade sparkling water is the kind of drink that makes you wonder why you ever reached for a store-bought can. A simple grapefruit syrup ā made by gently warming sugar, water, fresh juice, and zest together ā delivers a bold, natural flavor that no bottled version can quite match. The syrup steeps off the heat so the zest has time to fully infuse before it's strained away, leaving behind a beautifully clear, fragrant liquid. Once it's combined with chilled sparkling water, you get a drink that's lightly sweet, pleasantly tart, and seriously fizzy. Store-bought flavored sparkling waters can be a minefield of hidden additives and tropical flavor blends, but every single ingredient here is straightforward and easy to verify. Serve it over ice with a fresh grapefruit wedge and it looks as good as it tastes ā effortlessly elegant for a weeknight or a weekend gathering alike.
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Learn more ā4 servings






Combine the sugar, water, grapefruit zest, and grapefruit juice in a small saucepan over medium heat, stirring until the sugar is fully dissolved, about 3ā4 minutes. Do not boil.
Remove from heat and let the syrup steep for 15ā20 minutes, until cooled to room temperature and the zest flavor has infused.
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