Vichyssoise is pronounced vish-ee-SWAHZ (IPA /ˌvɪʃiˈswɑːz/). Stress 'SWAHZ'; 'ch' is /ʃ/ — 'vish-ee-SWAHZ'.
IPA: /ˌvɪʃiˈswɑːz/
Syllables: vish · ee · SWAHZ
Common ESL mistake: Learners pronounce all letters as 'VITCH-ee-soyz'.
Tip: Stress 'SWAHZ'; 'ch' is /ʃ/ — 'vish-ee-SWAHZ'.