
Bright, tangy, and just a little bit addictive, this pineapple shrub is the kind of homemade drinking vinegar that turns a plain glass of sparkling water into something genuinely exciting. Fresh pineapple chunks are coaxed with sugar until they release their juice, then finished with apple cider vinegar and a pinch of kosher salt for a concentrate that's sweet, sour, and deeply tropical all at once. The whole process is beautifully straightforward — no special equipment, no complicated techniques, just a saucepan, a jar, and a little patience while the flavors meld in the fridge. Every single ingredient here is naturally free from grains of any kind, so there's zero guesswork about hidden additives or cross-contact from processed goods. After 24 hours, you strain it into a clean jar and you've got a concentrate that keeps for up to four weeks, ready to splash into sparkling water whenever the mood strikes. It's the kind of thing that makes you feel like a very sophisticated home bartender, whether you're mixing up a mocktail for yourself or impressing guests at brunch.
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Combine the pineapple chunks and sugar in a medium saucepan. Stir to coat the fruit, then let the mixture sit at room temperature for 10 minutes until the sugar begins to dissolve and the pineapple releases some juice.
Place the saucepan over medium heat and cook, stirring occasionally, until the sugar is fully dissolved and the mixture just comes to a gentle simmer, about 3–5 minutes. Remove from heat immediately — do not boil vigorously.
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