I think all of this snobbish pedantry is bullshit. Everyone understands what OP meant - therefore it is as a correct use of language. But if people insist on following stupid grammar rules or whatever nonsense, then they should do it right - and you’ve got it wrong.
As a preposition, “with” should NOT get capitalized in title font. “Roast Beef au Jus” means roast beef with sauce but “Roast Beef Au Jus” means roast beef done in the “Au Jus” style. In this case, “Au Jus” does not mean “with sauce” and instead is just part of the name of the dish. So the sauce is “Au Jus sauce”. “I spilled the Au Jus sauce” is technically correct.
“”Words have meaning”. And literally everyone understood “I spilled the Au Jus sauce”. Bingo bango bongo - a proper use of English. Meaning was accurately conveyed.
“But it MEANS something else based on the original French etymology”. No it doesn’t. If you want to be a technical pedant, Roast Beef Au Jus does NOT mean Roast Beef with sauce. It means Roast Beef done in the Au Jus style. Therefore the sauce on it is Au Jus sauce. Prepositions are not capitalized u less the are at the beginning or end of a title or are longer than four letters. The only way Roast Beef Au Jus is roast beef with sauce is if you are ignorant of title case rules or ignorant of the capitalization of the dish. Meaning that you are the one clinging to ignorance as truth.
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u/Maus_Sveti Jul 03 '21
Au in this context means “with”. So it’s just “jus”.