In places where neither cream nor condensed milk can be purchased, a fair
ice cream is made by adding two tablespoonfuls of olive oil to each quart
of milk. The cream for Philadelphia Ice Cream should be rather rich, but
not double cream.
If pure raw cream is stirred rapidly, it swells and becomes frothy, like
the beaten whites of eggs, and is "whipped cream." To prevent this in
making Philadelphia Ice Cream, one-half the cream is scalded, and when it
is _very_ cold, the remaining half of raw cream is added. This gives the
smooth, light and rich consistency which makes these creams so different
from others.
USE OF FRUITS
Use fresh fruits in the summer and the best canned unsweetened fruits in
the winter. If sweetened fruits must be used, cut down the given quantity
of sugar. Where acid fruits are used, they should be added to the cream
after it is partly frozen.
TIME FOR FREEZING
The time for freezing varies according to the quality of cream or milk or
water; water ices require a longer time than ice creams. It is not well to
freeze the mixtures too rapidly; they are apt to be coarse, not smooth, and
if they are churned before the mixture is icy cold they will be greasy or
"buttery."
The average time for freezing two quarts of cream should be ten minutes; it
takes but a minute or two longer for larger quantities.
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