Grenadine syrup is a deep, crimson infusion traditionally made by simmering pomegranate juice with sugar until it reduces into a thick, tart-sweet concentrate. Thanks to the fruit’s natural tannins and bright acidity, it delivers bold, fruity, and slightly floral notes—often sharpened with a touch of lemon juice or a drop of orange blossom water—making Shirley Temples, Tequila Sunrises, and classic sodas taste richer, more vibrant, and more "pomegranate-fresh" than regular simple syrup.