01 -
Pipe or drop 10 small Nutella portions onto a parchment-lined tray. Stick it in the freezer for 20-30 minutes until hardened.
02 -
In a bowl that can go in the microwave, stir together the sugar and mochiko flour. Add the water, and whisk until there are no lumps.
03 -
Cover the bowl with a damp paper towel. Microwave for a minute, stir, and repeat this 2-3 times. The dough will turn sticky and see-through. Let it sit for 5-10 minutes to cool down.
04 -
Dust your surface generously with cornstarch. Put the dough on it, sprinkle more cornstarch on top, and roll it out into a sheet about 1/4 inch thick. Cut it into 10 equal pieces.
05 -
Take each dough piece, pop a Nutella chunk in the middle, and bring the edges up to cover it. Pinch to seal it closed. If needed, dust off the extra cornstarch and place seam-side down.