Have oxtails cut into serving pieces. Heat Cooker an add shortening. Borwn oxtails on all sides. Add onion and cook lightly. Combine salt, pepper, marjoram, basil, thyme, tomato juice, and pour over oxtails.
Close cover securely. Place Pressure Regulator on vent pipe and cook 40 minutes with pressure Regulator rocking slowly. Let pressure drop of its won accord.
