Take one cup of cold water, and pour one-half of it in a bowl with one
tablespoon of starch, stir well until starch is dissolved. Pour the
other one-half onto one heaping tablespoon of powered sugar and boil
for a few moments--until sugar is thoroughly dissolved. Allow it to
cool, and then add the starch, and one cup of milk, a pinch of salt, a
little grated lemon-rind, and two yolks of eggs. Mix all thoroughly,
then strain through a sieve, then put on the stove again, and over a
moderate fire, stir it constantly, always in the same direction, until
it has assumed the thickness you desire.