
Strawberry syrup is a sweet fruit syrup made by cooking or macerating strawberries with sugar and water.
Fresh strawberries muddled with sugar taste better and keep for a day. Raspberry syrup is sharper and more aromatic. Grenadine matches the color and tastes of pomegranate.
Strawberry cordial
Built on the juice with acid added, so it sweetens and sharpens at once. In place of the syrup it makes the drink brighter, and the citrus comes down to match.
Strawberry purée
The fruit leads, it is thicker and barely sweetened. Purée brings body and acidity where syrup brings sugar and color, so a swap needs the sugar put back by hand.
Commercial keeps months sealed and belongs in the fridge once open. Homemade lasts a week or two refrigerated, and the color browns before the flavor goes, so a dull-looking bottle may still taste fine.