Rissole (ris sow lay) In this recipe you boil potatoes, mash and chill then you add butter, egg yolks and Swiss cheese, mix and chill. After chilling shape into sausage rolls and coat in flour and dip in egg wash and then in soft bread crumbs; chill again and then deep fry until golden. These potatoes are crunchy crisp on the outside yet soft and tender on the inside. A sprinkling of parsley flakes creates an interesting eye appealing touch. It is preferred to use mealy potatoes such as Idaho, Maine and Long Island varieties.