This section is from the "The Fireless Cook Book" book, by Margaret J. Mitchell. Also see Amazon: The Fireless Cook Book.
THERE are two classes of soup, (1) those made with meat stock, which is the water in which meat has been cooked, sometimes in combination with other materials for seasoning purposes, and (2) those made without meat stock.
Soups Made With Meat Stock include:
Bouillon, made from lean beef, always served clear; or from clams.
Brown stock, made usually from beef, preferably one-half lean and one-half bone and fat, with seasonings of vegetables, herbs, and spices.
White stock, made from chicken or veal.
Consomme, made from several kinds of meat, seasoned highly with vegetables, herbs, and spices, and always served clear.
Broths or beef tea, made usually from lean mutton, lamb, or beef, and not clarified.
Soups Made Without Meat Stock include:
Cream soups, made from vegetable or fish stock with milk or cream and somewhat thickened with flour or corn-starch.
Purees, made from vegetables or fish put through a strainer, often with the addition of milk or cream. They also are thickened with flour or corn-starch and are usually thicker than cream soups. White stock also is sometimes used in purees.
Bisques are made like purees, except that pieces of vegetables, fish, meat, or game are served in them in addition.
Wash and cut the meat into small pieces or gash it frequently; crack the bone; let meat and bone soak in the cold water while preparing the seasonings; then add the seasonings, boil the stock ten minutes and put it into a cooker for from nine to twelve hours. When cooked, pour it through a wire strainer and set it away to cool. When cold, it should be kept in a refrigerator or other cold place. Be careful that the pail is well filled, or the soup will cool with the long cooking and may sour. If too small a quantity is cooked to fill the pail or pan it should be set over hot water. The cake of fat which forms on top when the stock is cold should not be removed until the soup is to be made, as it seals the stock and keeps out air and germs, thus helping to preserve it. When soup is to be made, the fat is taken off, the stock heated, and any desired seasonings or additions are put in.
Remove the fat, taste the stock, and if it needs more seasoning add it before the clearing. Put into each quart of the cold stock the slightly beaten white of one egg and one crushed egg-shell. Wash the egg before breaking it. Stir the stock constantly while heating it. Let it boil two minutes and set it in a cooker for one-half hour or more. Remove the scum and strain it through two thicknesses of cheesecloth laid in a colander.
Skim off all that can be taken off with a spoon. With a succession of small pieces of soft brown paper take off the rest as if you were using blotting paper on the surface of the soup. When no spotted appearance is seen on the papers, the fat is all removed.
This name is given to the process of thickening cream soups and purees, the liquid and solid part of which would separate unless bound together. Melt the butter, and when it is liquid add usually an equal quantity of flour and rub them together till well blended. They are then added to the soup and stirred constantly till perfectly mixed. If the proportion of flour is greater than that of the butter it will be better to add a little of the soup to the flour and butter in a separate saucepan as for making white sauce, and when enough has been added to make a smooth sauce, it may be poured into the soup.
 
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