frosting

US /ˈfrɑː.stɪŋ/
UK /ˈfrɑː.stɪŋ/
"frosting" picture
1.

a sweet, often creamy glaze made of sugar, butter, and flavorings, used to cover or decorate cakes and other baked goods

:
The cake was covered with a thick layer of chocolate frosting.
She decorated the cupcakes with vanilla frosting and sprinkles.