until the celery is tender.

* * * * *

Bisque of Prawns or Shrimps

Boil three dozen prawns twenty minutes in salted water to cover them.
Meanwhile in two small tablespoonfuls of butter, fry an onion and a
carrot sliced, and a small piece of salt pork chopped. Take the prawns
out of the boiling water and add to it the fried mixture with salt,
pepper, a bunch of sweet herbs and one-half the prawns added again.
Simmer one hour. Pound the shells of the prawns in a mortar with a
little butter, to form a smooth paste. Stir this into the soup and
boil twenty minutes. Strain through a sieve. Add one quart of milk and
one teaspoonful of cornstarch stirred into a little of the cold milk.
Let it boil up, and serve. It should be as thick as rich cream.

* * * * *

Lobster Soup

Pick the meat from a five pound lobster and pound it in a mortar,
adding from time to time a little milk or cream. When perfectly
smooth, add two teaspoonfuls of salt, one tablespoonful of chopped
parsley (if liked), cayenne and mace. Take out enough to make a dozen
small balls, mix this with the yolk of an egg and fry it in butter.
Mix the rest of the pounded lobster with two quarts of milk and rub
through a sieve. Put this in a saucepan and simmer ten minutes. Add
two ounces of butter and stir until melted and smooth. Pour over the
fried balls in the tureen and serve very hot.