cheese fondue vs fondue

cheese fondue and fondue both are nouns.

Word	Noun	Adjective	Verb	Adverb
cheese fondue	Yes	No	No	No
fondue	Yes	No	No	No

As nouns, fondue is a hypernym of cheese fondue; that is, fondue is a word with a broader meaning than cheese fondue:

cheese fondue: fondue made of cheese melted in wine for dipping bread and sometimes fruits
fondue: hot cheese or chocolate melted to the consistency of a sauce into which bread or fruits are dipped

Other hypernyms of cheese fondue include fondu.

cheese fondue (noun)	fondue (noun)
fondue made of cheese melted in wine for dipping bread and sometimes fruits	hot cheese or chocolate melted to the consistency of a sauce into which bread or fruits are dipped
	cubes of meat or seafood cooked in hot oil and then dipped in any of various sauces