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.
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(UK, Irish, Commonwealth) Powdered sugar.
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.