No. 65 Sauce à l’essence de Poissons.
Have the bones of two whitings or soles, (having used the fillets), break them into pieces and put them into a stewpan with an onion in slices, a good bunch of parsley, a little thyme, bay-leaf, two cloves, one glass of sherry, and ten of white broth; place it over the fire and let it reduce until the bottom of the stewpan is covered with a light glaze; then add eighteen tablespoonfuls of white sauce (No. 7), and ten of white broth, let it boil twenty minutes, then pass it through a tammie into another stewpan, boil it again, and finish with half a gill of cream and a little pepper and salt if required.