48. The food value of beans increases as they mature, as will be observed upon reference to Table I. The very young beans, that is, the string beans, which include the pods and all, are comparatively low in food value, being only a little higher than asparagus. To increase the food value of these, fat meat, butter, or other fat is supplied in their cooking, or milk or a cream sauce is added before they are served. Fresh shell beans have much more nutriment than string beans, whereas dried beans are very high in food value. It is this characteristic of dried shell beans that makes them a very good meat substitute.
STRING BEANS
49. VARIETIES OF STRING BEANS.--There are two general varieties of string beans: the yellow ones, which are commonly known as wax beans, and the green ones, which are the ones usually meant when the term string beans is used. Numerous varieties exist among these classes, and some are very much better than others. Many of them have strings, but others are stringless and consequently are easier to prepare. Whatever kind is used should be picked from the vines before the beans are old enough for the pods to develop woody fibers. Otherwise they will not be palatable, for when they have reached this stage it will be impossible to cook them soft.
50. SELECTION AND CARE.--Small, round, rusty-looking spots are common to both string and wax beans; but when such spots are present they must be removed before cooking. As there is considerable waste in the preparation of such beans for the table, it is wise in buying string beans to select those whose surface is not marred with such blemishes. In addition, the beans should be as fresh as can be obtained and crisp and tender enough to snap when the pods are bent in half. Proper attention should be given to them after they are purchased, too. If possible, they should be cooked immediately, but if this cannot be done they should be kept in a cool, damp place to prevent them from becoming limp. However, if they wilt before they can be cooked, they may be freshened by allowing them to stand in cold water for a short time.
51. PREPARATION AND COOKING.--To prepare beans for cooking, wash them thoroughly in cold water. If the beans are of the stringless variety, cut off the stem and blossom ends; but, in case they have strings, break the ends and strip off the strings together with the ends, as shown in Fig. 3. The beans may then be cooked whole or cut into inch lengths before cooking. If it is desired to cut them, the most convenient way is to place them in an orderly heap on a cutting board and then cut a handful at a time, drawing a sharp knife across them as they are held on the board. Any imperfect portions should be removed before cutting.
52. The cooking of string beans is similar to that of asparagus, except that they require longer cooking. Put them, either whole or cut into a kettle, cover them with boiling water to which has been added 1 teaspoonful of salt to each quart of water, and cook them with the cover on the kettle until they can be easily pierced with a fork. The length of time required to cook them depends on the age of the beans, but usually from 30 minutes to 1 hour will be sufficient. When they are done, drain the water from them, but save it to make sauce for them or to add to soup stock.
53. STRING BEANS IN BUTTER.--String beans, which, of course, include wax beans, may be served with a sauce of some kind, but they are very appetizing when merely drained after cooking and served with melted butter.
To prepare beans in this manner, wash the desired amount, remove the ends and strings, if necessary, and cut into inch lengths. Cook until they are tender and then pour off the water. Add 1 tablespoonful of butter for each four persons to be served, a dash of pepper, and, if they are not salty enough, a little more salt. Allow the butter to melt and serve the beans hot.
54. STRING BEANS WITH SALT PORK.--Those who like the flavor of salt pork will find string beans cooked with a small piece of this meat very appetizing. Besides improving the flavor, salt pork supplies the beans with fat, a food substance in which they are very low.