Fruit Often Used in Muffins
Puzzle 19 of Christmas Stockings Hard Pack
Question is: Fruit Often Used in Muffins
and the answer is: BLUEBERRY
Word Meaning:
BLUEBERRY — (countable) An edible round berry, belonging to the cowberry group (Vaccinium sect. Cyanococcus), with flared crowns at the end, that turns blue on ripening.
Definitions from Wiktionary.