Scrape half an ounce of fat bacon, put it in a pan with four tablespoonfuls of chopped onions, stir over the fire for a few minutes, then add ten tablespoonfuls of brown sauce and boil; then add a tablespoonful of mushrooms chopped, one ditto of parsley, a little nutmeg, a little pepper and sugar, a quarter of a clove of scraped garlic; reduce till rather thickish; put on dish till cold, and use it for anything you may put up en Papillotte.