applesauce vs apple sauce

applesauce and apple sauce both are nouns.

Word	Noun	Adjective	Verb	Adverb
applesauce	Yes	No	No	No
apple sauce	Yes	No	No	No

As nouns, applesauce and apple sauce are synonyms defined as:

applesauce and apple sauce: puree of stewed apples usually sweetened and spiced

applesauce (noun)	apple sauce (noun)
nonsensical talk or writing	puree of stewed apples usually sweetened and spiced
puree of stewed apples usually sweetened and spiced