
Maraschino cherries syrup is the sweet, red, cherry-and-almond-flavoured sugar syrup that maraschino cherries are packed in — the liquid drained from the jar.
Thick and clinging on the palate, finishing sweet and slightly synthetic, with a candied cherry note lifted by a distinct bitter-almond aroma.
Bartenders spoon or splash it in as an accent for colour, sweetness and a cherry-almond note rather than as a base. Being a viscous sugar syrup, it dissolves slowly in cold drinks and should be stirred through rather than expected to mix like a spirit.
No single swap covers everything: any simple or fruit syrup replaces the sweetness, and grenadine or another red syrup supplies the colour, but the cherry-plus-bitter-almond note needs a genuine cherry syrup with an almond flavour element to reproduce.
Maraschino liqueur is a distilled alcoholic spirit made from marasca cherries; maraschino cherries syrup is a non-alcoholic sugar packing syrup that shares only a historical name link.
Grenadine
Grenadine is a pomegranate-based red syrup; maraschino syrup carries a cherry/bitter-almond flavour, not pomegranate, though both are sweet and red.
Under the US FDA standard, maraschino cherries are dyed red, infused with sugar, and packed in a sugar syrup flavoured with oil of bitter almonds or a similar flavour, and this surrounding liquid is the syrup. In modern manufacture the cherries are first bleached in a brine, then soaked in a suspension of food colouring, sugar syrup and other components, so the syrup is a sweetened, dyed, almond-flavoured liquid rather than natural cherry juice. The non-alcoholic brine-based method was developed by Ernest H. Wiegand at Oregon State University, replacing an earlier method of preserving the fruit in maraschino liqueur.
Keep the jar refrigerated once opened; as a sugar-heavy liquid it lasts but will pick up flavours and degrade over time.
The name and original product come from the Dalmatian coast of Croatia, notably Zadar, where marasca cherries were preserved in maraschino liqueur; the American dyed, sugar-syrup-packed form is a later industrial development.