Rinse rice with hot water. Sauté onions in butter for about 5 minutes, until tender. Stir in rice, coating all rice with butter. Mix chicken base and pepper with the hot water; pour over rice and stir. Place in a covered casserole or ovenproof pan. Bake at 350° for 25 to 30 minutes. Mix red and green pepper into rice.
Rice Recipe serves 4.