powdered sugar
US /ˈpaʊ.dɚd ˈʃʊɡ.ər/
UK /ˈpaʊ.dɚd ˈʃʊɡ.ər/
1.
a finely ground sugar, often with a small amount of cornstarch added to prevent caking, used in icings, confections, and as a dusting for baked goods
:
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She dusted the freshly baked cookies with powdered sugar.
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The recipe calls for two cups of powdered sugar for the frosting.