Answer: blueberry

AnswerCrossword Clue
BLUEBERRYPie flavor
BLUEBERRYHill of song.
BLUEBERRY"... Hill," 1940 song
BLUEBERRYCommon muffin flavor
BLUEBERRYGood in muffins
blueberryThe small, sweet edible berry of this plant
blueberrythe edible fruit of Vaccinium vacillans and other American species
blueberryA hardy dwarf shrub of the heath family, with small, whitish drooping flowers and dark blue edible berries