255. Perch, Hampton Court fashion.—Cook the fish as above, and have ready the following sauce: put six spoonfuls of melted butter in a stewpan, with a little salt and the juice of a lemon; when upon the point of boiling, stir in the yolk of an egg mixed with a tablespoonful of cream; do not let it boil; blanch about twenty small sprigs of parsley in boiling water ten minutes, and some small pieces of rind of lemon for one minute, drain, and put them in the sauce, which pour over the fish, and serve.
Perch may also be served plain boiled or stewed as directed for tench, with sauce served separate.