For the purpose of colouring clear soups, however, there is nothing in the world to compare with what French cooks call caramel. Caramel is really burnt sugar. There is a considerable art in preparing it, as it is necessary that it should impart colour, and colour only. When prepared in the rough-and-ready manner of burning sugar in a spoon, as is too often practised in English kitchens, this desideratum is never attained, as you are bound to impart sweetness in addition to a burnt flavour. The simplest and by far the most economical method of using caramel is to buy it ready-made. It is sold by all grocers under the name of Parisian Essence. A small bottle, costing about eightpence, will last a year, and saves an infinite loss of time, trouble, and temper.

By far the most economical soups are the thick, where all the ingredients can be rubbed through a wire sieve. Thick soups can be divided into two classes—ordinary brown soup, and white soup. The ordinary brown is the most economical, as in white soups milk is essential, and if the soup is wished to be very good it is necessary to add a little cream.

Soups owe their thickness to two processes. We can thicken the soup by adding flour of various kinds, such as ordinary flour, corn-flour, &c., and soup can also be thickened by having some of the ingredients of which it is composed rubbed through a sieve. This class of soups may be called Purées. For instance, Palestine soup is really a purée of Jerusalem artichokes; ordinary pea soup is a purée of split peas. In making our ordinary vegetarian soups of all kinds, as a rule, all the ingredients should be rubbed through a sieve. The economy of this is obvious on the face of it. In the case of thickening soup by means of some kinds of flour, for richness and flavour there is nothing to equal ordinary flour that has been cooked. This is what Frenchmen call roux.

As white and brown roux are the very backbone of vegetarian cookery a few words of explanation may not be out of place. On referring to the recipe for making white and brown roux, it will be seen that it is simply flour cooked by means of frying it in butter, In white roux each grain of flour is cooked till it is done. In brown roux each grain of flour is cooked till it is done brown. We cannot exaggerate the importance of getting cooks to see the enormous difference between thickening soups or gravy with white or brown roux and simply thickening them with plain butter and flour. The taste of the soup in the two cases is altogether different. The difference is this. Suppose you have just been making some pastry—some good, rich, puff paste—you have got two pies, and, as you probably know, this pastry is simply butter and flour. Place one pie in the oven and bake it till it is a nice rich brown. Now taste the pie-crust. It is probably delicious. Now taste the piece of the pie that has not been baked at all. It is nauseous. The difference is—one is butter and flour that has been cooked, the other is butter and flour that has not been cooked.