Béchamel Sauce. No. 3
Cut a thick slice of veal or part of a knuckle into small cubes and put them into a sauce-pan with two ounces of butter, two medium-sized onions and two carrots sliced. Cook for ten minutes, taking care it should not brown, then put in five ounces of flour and stir for five minutes over the fire. Pour in three quarts of strong white stock and one of good cream. Add three and a half ounces of minced mushrooms, one bouquet, one saltspoonful of salt, and half a saltspoonful of pepper. Let it boil, and then stand the sauce-pan to simmer on the hob for one and a half hours, skimming often. Strain through a sieve into a large sauce-pan to jelly, add two wineglassfuls of cream and reduce till the sauce clings to the spoon. Then strain again. Stir occasionally while it is cooling, or a skin will form on the top of the sauce, in which case it must be strained again.