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.