What I said is incorrect, is the parent poster saying it sounds closer to "é" than the sound of "best".
If you can't tell the difference, too bad for you, but that doesn't make you right.
"è" (or "et" in French) is pronounced /ɛ/. Wikipedia will confirm that this is indeed the same sound as in "best" (/ˈbɛst/). https://en.m.wiktionary.org/wiki/best
"é" is not the same sound. It's pronounced /e/ like in "fiancée" (/fiˈɑnseɪ/) https://en.m.wiktionary.org/wiki/fianc%C3%A9e
> anglicised pronunciation which is correct in English
All the links I have posted are for the anglicised version of the French words.
Cachet is an english word in this context, so how could the English pronunciation be incorrect?
> "è" (or "et" in French) is pronounced /ɛ/. Wikipedia will confirm that this is indeed the same sound as in "best"
Yep.
> "é" is not the same sound. It's pronounced /e/ like in "fiancée"
Also yep. Nobody is disputing you on those.
The problem is when you're saying that the english pronunciation for an english word is incorrect." It can't be. Cachet, in this context, is an english word and this is the english pronunciation.
Though you'll be happy to know that where I grew up in Texas, everyone tried to pronounce "croissant" the French way when (and only when) ordering one at a deli counter. But we weren't far from Paris, Texas.