PARFAITS
This class of ice-creams is very easily made, as they are not stirred while freezing. The yolks of eggs are cooked with sugar syrup to a thick smooth cream, then flavored and beaten until cold and light, and mixed with drained whipped cream. They are then simply put into a mold and packed in ice and salt for three or four hours, according to size of mold. They are not solid like the custard ice-creams, but have a sponge-like texture. They should not be frozen too hard. It is because they have no water in them to crystallize that they do not require to be stirred while freezing.
SUGAR SYRUP
Put two cupfuls of sugar and a half cupful of water into a saucepan on the fire. Stir until the sugar is dissolved, then let it cook slowly without touching it for about ten minutes, or until it is a clear syrup. The syrup can be made in larger quantities and kept in preserve jars ready for use. To keep well it should be boiled to a rather thick consistency, or should register 32° on the syrup gauge. For parfaits it should be thinner or register 20°. For water ices it should register 32° (see boiling sugar, page [513]).
In using syrups by measure, articles may be too much sweetened if the right degree is not designated; but if one has not a syrup gauge the sweetening must be determined by taste. All classes of ice-creams are better sweetened with syrup than with sugar. It seems to give them more smoothness and delicacy.
VANILLA PARFAIT
Beat the yolks of eight eggs until light; add one cupful of syrup. Place the mixture on a slow fire and stir constantly until the eggs have thickened enough to make a thick coating on the spoon. Turn it into a bowl and beat it with a whip until it is cold; it will then be very light. If a vanilla bean is used for flavoring, infuse it with the syrup; if the extract is used add a teaspoonful of it to the custard when it is taken from the fire. When the custard is cold add a pint of cream whipped to a stiff froth. (If any liquid has drained from the cream do not let it go in.) Stir these lightly together; turn the mixture into a mold holding three pints. Pack in ice and salt for four hours. Make the joints of the mold very tight as directed for molding at head of chapter.
This cream can be varied by using different flavorings in place of the vanilla: a tablespoonful of curaçao or of noyau, two ounces of chocolate melted and smoothed with a little cream, etc., etc.
MAPLE PARFAIT
This is made the same as the vanilla parfait, using maple syrup in place of the sugar syrup, and omitting the vanilla flavoring. Maple syrup may be made by adding water to maple sugar and cooking it to the right consistency.