3 syllables, "care-ah-mel", hence the two "a"s in the spelling. There was a discussion on this in e-gullet not too long ago, in which I pointed out the same spelling, pronunciation and 3, not 2, syllables. Regretfully since I am (a) a Canuck, and (b) a dirty sordid, food business owner, I was told in not too pleasant terms that since the pronunciation "car-muhl" existed in Wikipedia, I had no right to educate others on the proper pronunciation.