4 slices of fresh sword fish

a glass of oil,

2 eggs,

1 small onion,

a handful of parsley,

a pinch of thymus,

a handful of capers,

2 spoonfuls of French mustard,

1 lemon, salt,

pepper.

Drop in a cup two yolks of egg lightly salted and pour the oil by drops stirring until you obtain three quarters of a mayonnaise cup. Add the lemon juice, onion, parsley, thymus and the capers, the all minced until it reduces in swill. Add two spoonfuls of mustard. Put the slices of fish on the grill greased of oil. Add Salt, pepper, make them brown, serve them very warm.