Fill the center, then cover with rice
Wash before first use and wet the mold before filling. Add a layer of rice, make a channel along the center, and arrange the fillings in that space before covering them with more rice.
This sequence keeps the filling inside the roll as the lid is pressed down. Prepare the nori and serving board alongside the mold so the shaped rice can be wrapped after release, rather than trying to line the mold with the outer wrap.










