A guide to modern cookery by A. Escoffier

1. After having strained the braising sauce, completely remove its

grease, and reduce it until it is very dense. Strain it once more through muslin, twisting the latter; then, in order to bring the sauce to its normal consistence, add the juice of six oranges and one lemon per quart of sauce. Finish with a small piece of lemon and orange rind cut regularly and finely, Julienne-fashion, and scalded for five minutes.