
Bright, citrusy, and genuinely refreshing, this sparkling grapefruit drink is the kind of thing you'll want to keep in a pitcher in the fridge all week. A quick homemade syrup made from real grapefruit zest and juice gives it a depth of flavor that no store-bought version can match ā floral, a little tart, and just sweet enough. Managing an alpha-gal sensitivity means scrutinizing ingredient labels constantly, but this recipe is beautifully straightforward: sugar, water, fresh grapefruit, and sparkling water, nothing hidden or ambiguous. Steeping the zest into the warm syrup pulls out every bit of that aromatic citrus oil before you strain it clean, so the final drink is smooth and elegant. Pouring it gently over ice keeps the bubbles alive, and a fresh grapefruit wedge on the rim makes it feel like something you'd order at a nice restaurant. It works just as well as a mocktail at a dinner party as it does on a quiet afternoon when you just want something a little special.
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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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