31. MATELOTTE SAUCE.
TAKE the wine in which the fish has been stewed, and add to it a ladleful of brown sauce, and some trimmings or essence of mushrooms; stir this on the fire till it boils, and then set it by the side to clear itself; skim it and reduce it, and then pass it into a bain-marie; finish by adding a little anchovy butter, grated nutmeg, and a pinch of sugar.