Mix the grape juice, water, and milk. Soak the gelatine in a little cold water and add sufficient boiling water to dissolve. Pour this into the liquid and add the sugar and the juice of the lemon. Stir until the sugar is dissolved. Place in a freezer and freeze.

MOUSSES, PARFAITS, AND BISCUITS

98. Nature of Mousses, Parfaits, and Biscuits. Mousses, parfaits, and biscuits differ from other frozen desserts in that they are frozen in molds rather than in a freezer. Mousses and parfaits are similar in nature, and still there is a slight distinction between them. Mousses nearly always contain gelatine and are frequently made without eggs, while parfaits are composed largely of sirup, eggs, and cream. Biscuits are usually made of a mixture similar to mousses and parfaits, but are molded in individual molds.

Since the desserts are frozen without being turned, they must be of a heavy, smooth texture, so that they will not be granular when they are frozen, as would be the case if a fine mixture were packed in a mold and frozen without turning. In many of them, whipped cream and beaten eggs are folded in to give lightness. In the ordinary manner of freezing, this lightness would be lost, but it is retained in this method because the mixture is undisturbed during the freezing process. Considerable time is required to freeze these heavy mixtures; in fact, if a mousse contains too large a proportion of gelatine, there is difficulty in freezing it at all.

99. MOLDING: MOUSSES, PARFAITS, AND BISCUITS.--The molding of mousses, parfaits, and biscuits, while different from the freezing of other frozen desserts, is not a difficult matter. They are usually put in a mold of some kind and the mold is then covered with a mixture of ice and salt. After the mixture is prepared, crack the ice as previously explained, and mix it with salt in the proportion of 2 to 1. As a rule, a very large dish pan or other utensil that will hold a sufficient quantity of ice to cover the mold well is used for freezing the packed mold. Set the mold in the pan of ice and salt until it is thoroughly cooled, and then fill it with the mixture to be frozen. Often, to improve the appearance, the mold is first lined with a frappé or an ice and then filled with the heavier mixture. Such an arrangement provides an opportunity for a color scheme and at the same time facilitates the removal of the dessert from the mold.

With the mold filled in the desired way, wrap several layers of oiled paper in a band around the edge and press the cover down tightly to prevent the entrance of any salt water. Then pack the closed mold in the pan of ice and salt, being careful to have it completely covered. It may be necessary to pour off the water and repack with ice and salt once during the freezing. Care should be taken not to freeze the mixture too long, for, at best, it is hard to remove these desserts from the mold and this difficulty is increased if they are frozen too hard.

100. CARAMEL MOUSSE.--A melon mold makes a very attractive dessert when used for the molding of caramel mousse. After being turned out of the mold on a platter and garnished with peaches, this dessert will appear as in Fig. 19. In addition to being attractive, caramel mousse is so delicious that it appeals to practically every one.