1 au bleu | Definition of au bleu
\ (ˌ)ōˈblœ̅, -ˈblə̄, -ˈblü\

Definition of au bleu

: cooked by boiling in acidulated water immediately after being killed and cleaned but without being washed or scaled used especially of trout

First Known Use of au bleu

1776, in the meaning defined above

History and Etymology for au bleu

French, literally, to the blue; from the fact that the skin of fish cooked in this manner turns blue

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