A Mixed Sauce.
Take parsley, scallions, mushrooms, and half a clove of garlic, the whole shred fine; turn it a few times over the fire with[203] butter; shake in a little flour, and moisten it with good broth: when the sauce is consumed to half the original quantity, add two pickled gherkins cut small, and the yolks of three eggs beaten up with some more broth; a little salt and cayenne will complete the sauce.