Science in the Kitchen / A Scientific Treatise On Food Substances and Their Dietetic Properties, Together with a Practical Explanation of the Principles of Healthful Cookery, and a Large Number of Original, Palatable, and Wholesome Recipes

by E. E. Kellogg

Chinese Soup Strainer.

If the material is now cold, it must be reheated, and the salt, if any is to be used, added. The quantity of salt will depend somewhat upon the taste of the consumer; but in general, one half teaspoonful to the pint of soup will be an ample supply. If any particular flavor, as of onion or celery, is desired, it may be imparted to the soup by adding to it a slice of onion or a few stalks of celery, allowing them to remain during the reheating. By the time the soup is well heated, it will be delicately flavored, and the pieces of onion or celery may be removed with a fork or a skimmer. It is better, in general, to cook the soup all that is needed before flavoring, since if allowed to boil, all delicate flavors are apt to be lost by evaporation. When reheated, add to the soup a quantity of cream as seasoning, in the proportion of one cup of thin cream for every quart or three pints of soup.

To avoid the possibility of any lumps or fragments in the soup, pour it again through a colander or a Chinese soup strainer into the soup tureen, and serve. It is well to take the precaution first to heat the strainer and tureen, that the soup be not cooled during the process.

If it is desired to have the soup especially light and nice, beat or whip the cream before adding, or beat the hot soup with an egg beater for a few minutes after adding the cream. The well-beaten yolk of an egg for every quart or three pints of soup, will answer as a very fair substitute for cream in potato, rice, and similar soups. It should not be added to the body of the soup, but a cupful of the hot soup may be turned slowly onto the egg, stirring all the time, in order to mix it well without curdling, and then the cupful stirred into the whole. Soups made from legumes are excellent without cream.

The consistency of the soup when done should be about that of single cream, and equal throughout, containing no lumps or fragments of material. If it is too thick, it may be easily diluted with hot milk or water; if too thin, it will require the addition of more material, or may be thickened with a little flour or cornstarch rubbed to a cream with a small quantity of milk, used in the proportion of one tablespoonful for a quart of soup,—heaping, if flour; scant, if cornstarch,—and remembering always to boil the soup five or ten minutes after the flour is added, that there may be no raw taste.

The addition of the flour or cornstarch gives a smoothness to their consistency which is especially desirable for some soups. A few spoonfuls of cooked oatmeal or cracked wheat, added and rubbed through the colander with the other material, is valuable for the same purpose. Browned flour prepared by spreading a cupful thinly on shallow tins, and placing in a moderately hot oven, stirring frequently until lightly and evenly browned, is excellent to use both for thickening and flavoring certain soups.

If whole grains, macaroni, vermicelli, or shredded vegetables are to be used in the soup, cook them separately, and add to the soup just before serving.

The nutritive value of soup depends of course upon its ingredients, and these should be so chosen and combined as to produce the best possible food from the material employed. Milk is a valuable factor in the preparation of soups. With such vegetables as potatoes, parsnips, and others of the class composed largely of starch, and containing but a small proportion of the nitrogenous food elements, its use is especially important as an addition to their food value, as also to their palatableness. Very good soups may, however, be made from legumes, if carefully cooked with water only.

Soups offer a most economical way of making use of the "left-over" fragments which might otherwise be consigned to the refuse bucket. A pint of cold mashed potatoes, a cupful of stewed beans, a spoonful or two of boiled rice, stewed tomatoes, or other bits of vegetables and grains, are quite as good for soup purposes as fresh material, provided they have been preserved fresh and sweet. To insure this it is always best to put them away in clean dishes; if retained in the dish from which they were served, the thin smears and small crumbs on the sides which spoil much sooner than the larger portion, will help to spoil the rest. One may find some difficulty in rubbing them through the colander unless they are first moistened. Measure the cold food, and then determine how much liquid will be needed, and add a part of this before attempting to put through the colander.