Pot of Sweetened, Sour-Tasting Cream
Puzzle 11 of Sticky Things Piece of Cake Pack
Question is: Pot of Sweetened, Sour-Tasting Cream
and the answer is: YOGURT
Word Meaning:
YOGURT — A milk-based product stiffened by a bacterium-aided curdling process, and sometimes mixed with fruit or other flavoring.
Definitions from Wiktionary.