ash cake vs ashcake

ash cake and ashcake both are nouns.

Word	Noun	Adjective	Verb	Adverb
ash cake	Yes	No	No	No
ashcake	Yes	No	No	No

As nouns, ash cake and ashcake are synonyms defined as:

ash cake and ashcake: corn bread wrapped in cabbage leaves and baked in hot ashes (southern)

Other synonyms of ash cake include corn tash.

ash cake (noun)	ashcake (noun)
corn bread wrapped in cabbage leaves and baked in hot ashes (southern)	corn bread wrapped in cabbage leaves and baked in hot ashes (southern)