Chicken Soup with Leeks

Cut about a quarter of a chicken into slices ; brown for ten minutes in a saucepan
with an ounce of butter and half a chopped onion ; moisten with three pints of
consomme, and add three leeks cut in pieces, a garnished bunch of parsley, half a
tablespoonful of salt and a teaspoonful of pepper. Serve after boiling thirty minute,
and removing the parsley.