Gather glutinous rice flour, sugar, water, cornstarch or potato starch, ice cream, and plastic wrap
Scoop small balls of ice cream and freeze until firm
Mix glutinous rice flour, sugar, and water in a microwave-safe bowl until smooth
Cover the bowl loosely with plastic wrap
Microwave the mixture in short intervals, stirring between each, until thick and sticky
Dust a work surface with cornstarch or potato starch
Transfer the cooked mochi dough onto the dusted surface
Let the dough cool slightly
Roll out the dough into a thin sheet
Cut the dough into circles
Place a frozen ice cream ball in the center of each circle
Wrap the mochi dough around the ice cream and pinch to seal
Place each mochi ice cream piece seam-side down
Freeze until firm before serving
Keep frozen until ready to eat