blue cheese dressing vs bleu cheese dressing

blue cheese dressing and bleu cheese dressing both are nouns.

Word	Noun	Adjective	Verb	Adverb
blue cheese dressing	Yes	No	No	No
bleu cheese dressing	Yes	No	No	No

As nouns, blue cheese dressing and bleu cheese dressing are synonyms defined as:

blue cheese dressing and bleu cheese dressing: creamy dressing containing crumbled blue cheese

blue cheese dressing (noun)	bleu cheese dressing (noun)
creamy dressing containing crumbled blue cheese	creamy dressing containing crumbled blue cheese
vinaigrette containing crumbled Roquefort or blue cheese