674. Lyonnaise.—The remains of cold potatoes may be used thus:—Put three ounces of butter in an omelette pan, in which you fry rather white three sliced onions; put on the potatoes, cut in thin slices about the size of half a crown, and sauté them now and then until they have a nice yellow color; add a spoonful of chopped parsley, salt, pepper, and the juice of a lemon, sauté well that it should mix well together, dish and serve very hot; they are excellent to serve with chop, steak, or any joint.