FILLETS OF SOLE À LA NORMANDY
Put the fillets in a buttered saucepan with salt and pepper to season, a tablespoonful of butter, a chopped onion, and half a cupful of white wine. Cover and cook for ten minutes, then take up the fish and drain carefully. Cook together without browning, two tablespoonfuls each of butter and flour, add the liquid drained from the pan and enough oyster liquor and white stock to make three cupfuls of sauce. Cook until thick, stirring constantly, skim, take from the fire, and add the yolks of four eggs well-beaten, two tablespoonfuls of butter in small bits, the juice of half a lemon, and a few cooked oysters, mussels, and scallops cut fine. Pour the sauce over and serve.