Bouchees of Sardines

Pound one or two boned sardines in a mortar, together with a small quantity
of cheese, and add salt, pepper and chili vinegar until the mixture has the taste
and appearance of dressed crab. Mix in a few chopped oysters ; put the mixture
into small cases of bread fried in butter, and garnish with hard boiled yolk of egg
rubbed through a sieve and mixed with finely-chopped parsley. Arrange these
bouchees on a napkin on, a dish, and serve.