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icing sugar

The British, Irish, and Commonwealth name for what Americans call powdered sugar or confectioners' sugar — white sugar ground to a fine powder, often mixed with a small amount of cornstarch to prevent clumping.

ˈaɪsɪŋ ˈʃʊɡɚ218 viewsLast reviewed Jun 29, 2026+ Add a definition
🇬🇧 British & Irish slang
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#1·Apr 28, 2026UK

The British, Irish, and Commonwealth name for what Americans call powdered sugar or confectioners' sugar — white sugar ground to a fine powder, often mixed with a small amount of cornstarch to prevent clumping. It's used for dusting desserts, making frostings, and anywhere you need sugar that dissolves instantly. A classic marker of UK vs. US recipe vocabulary: the same ingredient, two very different names.

Dust the top with icing sugar right before serving so it doesn't melt into the cake.
Origin: Named for its use in icing (frosting) cakes, a term that predates the American 'powdered sugar' variant. Editorial expansion authored on Slangora.
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UK
#2·Apr 27, 2026UK

(UK, Irish, Commonwealth) Powdered sugar.

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🇬🇧About British & Irish slang slang

UK and Irish slang — Cockney, Scouse, Geordie, Yorkshire, Glaswegian, Brummie, Welsh, West Country, plus Irish English. Centuries of regional dialects feeding into modern British and Irish street talk.

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