I visited the Chandon winery in Napa valley and had a lovely dinner in their restaurant. They all pronounced it Mow ett and 'splained the reason why.

http://www.chandon.com/web/about-chandon/about.cfm

Lawchick, don't forget that Americans don't have the short closed 'O' in their phonetic repetoire. So your average yank, is going to come out with something like "Maw-ett.

The short "o" and the "e" are elided so it's closer to "Mwet" pure and simple because that is how it is pronounced and what is sounds like.

Like couette=kwet

I don't think you would take kindly to the French telling you that Smith was pronounce Smeess.

I like Smeess.