Icing on the Top of a Cake, Not Necessarily Cold
Puzzle 14 of Safety First Hard Pack
Question is: Icing on the Top of a Cake, Not Necessarily Cold
and the answer is: FROSTING
Word Meaning:
FROSTING — (US) Icing, a sweet, often creamy and thick, covering for cakes and other baked goods.
Definitions from Wiktionary.