Shrimp Sauce.—Skin a pint of cooked shrimps and put the heads and skins in a stewpan, cover them with a pint of fish stock or water, add one bayleaf, little thyme, and parsley, a few peppercorns, one onion peeled and sliced, and boil all together for twenty minutes, then strain: melt one and a half ounces of butter in a stewpan, mix in one and a half