1 lb Herring boned & skinned 3 T Prepared mustard 3 t Capers 6 T Olive oil 4 T Sour cream 1/4 t Black pepper fresh ground Cut the herring into 1" x 3/4" pieces and layaside. Mix the other ingredients ecept for 1 t of capers to be used as a garnish. Place the herring in deep dish and cover with the mixture. Cover and chill 4-6 hours. Sprinkle with the remaining capers and serve.