A guide to modern cookery by A. Escoffier

1. Heat two oz. of butter in a stewpan, and insert one lb. of raw

Mirepoix (No. 228). Fry the vegetables until they are well browned; moisten with one-quarter pint of vinegar and one-half pint of Marinade (Formula 169); reduce to two-thirds; add one pint of Espagnole Sauce, and cook for three-quarters of an hour. Ten minutes before straining the sauce, put in a few crushed peppercorns. If the pepper were put in the sauce earlier, it might make it bitter.