
Bright, citrusy, and endlessly refreshing, this homemade grapefruit sparkling water is the kind of drink that makes you feel like you're sitting on a sun-drenched patio even on an ordinary Tuesday. The secret is a quick grapefruit syrup made from real zest and freshly squeezed juice, which gives the whole thing a depth of flavor that store-bought flavored waters simply can't match. You steep the zest right into the warm syrup so every sip carries that fragrant, slightly bitter citrus punch before the bubbles even hit your tongue. Straining the syrup keeps the texture clean and smooth, and folding it gently into chilled sparkling water means you hold onto every last bit of fizz. The ingredient list is naturally free of nuts in any form ā just sugar, water, grapefruit, and bubbles ā so there's zero label-reading stress here. Dress it up with a fresh grapefruit wedge on the rim and it looks genuinely impressive for a dinner party or brunch spread. It's simple, stunning, and completely made from scratch.
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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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