Abstract: An apparatus and method for post-extrusion filling and closing of an extrudate includes a feeder arranged in relation to an extruded rope of material flowing from an extrusion die of an extruder, wherein the rope of material has an opening that can receive a filler material. The feeder deposits the filler material into the opening of the rope of material as the rope of material flows by the feeder. A former receives the rope of material after the feeder has deposited the filler material into the opening of the rope. The former shapes the rope of material and close a portion or all of the rope around at least a portion of the deposited filler material to retain the filler material within the rope. A cutter may axially cut the rope to form the opening. A finisher may cut the shaped rope into portions containing the deposited filler material.