This page incorporates text from the public domain cookbook The Cook's Decameron: A Study In Taste, Containing Over Two Hundred Recipes For Italian Dishes by Emily Waters.
2 spoonfuls burnt sugar
1 spoonful vinegar
Stock
2 cups Espagnole sauce (No. 1)
A few stoned raisins
A few pine nuts or slivered almonds
Mix burnt sugar with vinegar, and dilute with a little stock.
Add Espagnole sauce, raisins, and pine nuts.
Keep this hot in a bain-marie, and serve with cutlets, calf's head or feet or tongue.