A sauce like the above is very good to serve with beef that has been boiled for broth.

Take a little stock, squeeze in the juice of a lemon, add a little mushroom powder, cayenne pepper and salt; thicken with flour.

The Jewish Manual — Part 12

Chop some mushrooms, young and fresh, salt them, and put them into a saucepan with a little gravy, made of the trimmings of the fowl, or of veal, a blade of mace, a little grated lemon peel, the juice of one lemon; thicken with flour, and when ready to serve, stir in a table-spoonful of white wine.

The Jewish Manual — Part 12

EGG SAUCE: A FINE WHITE SAUCE FOR BOILED CHICKENS, TURKEYS, OR WHITE FRICASSEES.

The Jewish Manual — Part 12

Beat up the yolks of four eggs with the juice of a fine lemon, a tea-spoonful of flour, and a little cold water, mix well together, and set it on the fire to thicken, stirring it to prevent curdling. This sauce will be found excellent, if not superior, in many cases where English cooks use melted butter. If capers are substituted for the lemon juice, this sauce will be found excellent for boiled lamb or mutton.

Cut in small pieces from about four to five heads of celery, which if not very young must be peeled, simmer it till tender in half a pint of veal gravy, if intended for white sauce, then add a spoonful of flour, the yolks of three eggs, white pepper, salt, and the juice of one lemon, these should be previously mixed together with a little water till perfectly smooth and thin, and be stirred in with the sauce; cream, instead of eggs, is used in English kitchens.

Skin a dozen fine tomatos, set them on the fire in a little water or gravy, beat them up with a little vinegar, lemon juice, cayenne pepper, and salt; some persons like the yolk of an egg, well beaten added. Strain or not, as may be preferred.

GRAVY FOR A FOWL, WHEN THERE IS NO STOCK TO MAKE IT WITH.

Take the feet, wash them, cut them small, also the neck and gizzard; season them with pepper and salt, onion, and parsley, let them simmer gently for some time, in about a breakfast-cup of water, then strain, thicken with flour, and add a little browning, and if liked, a small quantity of any store sauce at hand, and it will prove an excellent sauce.

SAVOURY JELLY, FOR COLD PIES, OR TO GARNISH COLD POULTRY.

Have a bare knuckle of veal, and a calf's foot or cow heel; put it into a stew-pan with a thick slice of smoked beef, a few herbs, a blade of mace, two or three onions, a little lemon peel, pepper and salt, and three or four pints of water (the French add a little tarragon vinegar). When it boils skim it, and when cold, if not clear, boil it a few minutes with the white and shell of an egg, and pass it through a jelly bag, this jelly with the juice of two or three lemons, and poured into a mould, in which are put the yolks of eggs boiled hard, forms a pretty supper dish.