Sticky Topping on Apples
Puzzle 19 of Thanksgiving Piece of Cake Pack
Question is: Sticky Topping on Apples
and the answer is: CARAMEL
Word Meaning:
CARAMEL — (uncountable) A smooth, chewy, sticky confection made by heating sugar and other ingredients until the sugars polymerize and become sticky.
Definitions from Wiktionary.