No. 64 Caper Sauce
One tablespoonful of capers and 2 tablespoonfuls of vinegar. To prepare the capers mince 1/3 of them very fine, divide the rest in halves; put them in a ¼ pint of melted butter or thickened gravy; stir them the same way as the melted butter or it will oil. A few leaves of parsley minced fine can be added to the sauce; keep the caper bottle corked closely; do not use any of the liquor; if the capers are not well covered with it they will spoil. This sauce is used with a boiled leg of mutton.