white onion sauce vs Soubise

white onion sauce and Soubise both are nouns.

Word	Noun	Adjective	Verb	Adverb
white onion sauce	Yes	No	No	No
Soubise	Yes	No	No	No

As nouns, white onion sauce and Soubise are synonyms defined as:

white onion sauce and Soubise: veloute sauce with sauteed chopped onions and whipping cream

white onion sauce (noun)	Soubise (noun)
veloute sauce with sauteed chopped onions and whipping cream	veloute sauce with sauteed chopped onions and whipping cream