Sanguinity over-browned some roux while making creamed spinach and decided to start over. Later she turned the browned batch into Sauce Espagnole, and we rediscovered how wonderful our 1975 edition of Joy of Cooking is:

Legion are the children of this mother-sauce, and only the cook’s clumsiness or lack of ingenuity need convert them into the changelings we lump together as “gravy.”

Graaaaaavy.