bar sugar
n.— «Another name for superfine sugar is bar sugar, so you might be able to find it where bar supplies are sold.» —“About Superfine Sugar” Washington Post Oct. 18, 2006. (source: Double-Tongued Dictionary)
Further reading
Have you ever googled your own name and found someone else who goes by the very same moniker? There’s a word for that: googleganger. Plus, the language of hobbyists and enthusiasts: If you’re a beekeeper, perhaps you call yourself a...
Ribbon fall. Gallery forest. You won’t find terms like these in most dictionaries, but they and hundreds like them are discussed by famous writers in the book Home Ground: A Guide to the American Landscape. The book is an intriguing collection...
I began working in bars in Chicago in the mid nineteen-eighties, and “bar sugar” was common as the term then, though it never got much use as an ingredient in any bars where I worked. I believe it was called that in San Francisco as well, where I also worked.