Answer: grapenuts

AnswerCrossword Clue
GRAPENUTSDoubly misnamed cereal
GRAPENUTSDoubly misnamed edible
GRAPENUTSPost production?
GRAPENUTSCereal named for two ingredients it doesn't have
GRAPENUTSPost breakfast cereal
GRAPENUTSBreakfast brand since 1897