- a brittle clear amber-coloured sweet made by boiling sugar, originally with a barley extract
WordReference Random House Unabridged Dictionary of American English © 2020
Fooda brittle, amber-colored, transparent candy, formerly boiled in a decoction of barley, consisting of sugar, cream of tartar, and orange or lemon juice, usually twisted into strips or molded into a variety of shapes. Also called bar′ley can′dy.
Collins Concise English Dictionary © HarperCollins Publishers::
barley sugar n