Peel medium-sized potatoes and cut into chunks. Boil until fork-tender, about 15-20 minutes, then drain and mash until smooth.

In a mixing bowl, combine mashed potatoes with glutinous rice flour and half a cup of water. Stir until a soft, pliable dough forms.

Divide the dough into portions. Flatten each piece and roll into logs or desired shapes.

Heat oil in a frying pan over medium heat. Fry rolls until golden brown and crispy, about 3-5 minutes per side.

Drizzle soy sauce over rolls and sprinkle with sesame seeds and chopped green onions.