A production method for an encrusted food in that filling is encrusted with dough is comprised of: disposing a plurality of shutter pieces on a flange having an opening, each of which has a pressure face facing the opening; transporting the dough onto the flange; by a linkage, driving the shutter pieces synchronously to press the pressure faces on a periphery portion of the dough; pressing the dough on the flange against a nozzle so as to catch the periphery portion of the dough between the flange and a shoulder of the nozzle and squeeze the periphery portion of the dough into a gap between an outer periphery of the nozzle and the pressure faces; expelling the filling through the nozzle onto the dough on the flange to bulge the dough out of the opening; detaching the dough from the nozzle; and gathering the periphery portion by the pressure faces.