HALIBUT À LA CREOLE—II

Lay halibut steak for an hour in oil and vinegar, adding chopped onion and minced parsley to the marinade. Drain and put the fish into a baking-pan. Turn over it a sauce made of one cupful of strained tomatoes, a tablespoonful of butter, a heaping teaspoonful of flour, and salt, paprika, and grated onion to season. Cover closely and bake until tender. Sprinkle with grated cheese and cook for five minutes longer. Transfer the fish carefully to a hot platter and pour the sauce around it.