ask the restaurant before ordering

ask: “is the reduction thickened with flour or does it contain soy sauce?”

ask: “is the reduction finished with butter?”

ask: “does the reduction contain any milk or cream?”

ask: “can this be prepared with less salt?”

ask: “does the reduction contain alcohol, and is the beef halal?”

ask: “is the beef kosher certified and does the reduction contain non-kosher wine?”