Au bleu (blo), Glossary and Terms, Meat, Fish, Fruit, Grocery Food Stores
List of United States Miscellaneous Food Stores, Drinks, Retail Bakeries, Frozen Meat & Fish Markets
"Au bleu (blo)"
Means blue and describes the process where freshly killed fish is plunged into boiling water and poached until the skin of the fish has a bluish tinge.