Raspberry flavored syrup is a lush, ruby-toned infusion made by simmering fresh or frozen raspberries with sugar and water until the fruit breaks down into a concentrated, vibrant sweetener. Thanks to the natural tartness and aromatic esters of the berries, it delivers bold, jammy, and tangy notes—often enhanced with a hint of lemon juice to brighten the color—making iced coffees, sparkling rosés, and decadent desserts taste deeper, more intense, and more “orchard-fresh” than regular simple syrup.