Prepare the Potatoes. First, peel and dice the potatoes into 1-inch cubes (approximately).
1.25 pounds potatoes
Boil the Potatoes. Place potatoes in a large pan with water. Boil until soft, about 15 minutes.
Drain. Drain the potatoes well, removing any leftover water.
Mash. Use a fork or a potato masher to mash the potatoes until completely soft and no lumps remain.
Add & Measure. Add potato starch, vegan butter & salt to the mashed potatoes. Mix well with a fork until combined. Then scoop out ¼ cup.
2.5 tablespoon potato starch, 1 tablespoon vegan butter, 1 teaspoon salt
Shape It. Use your hands to shape ¼ cup of the mixture into a smooth disc. If the mixture can't be formed into a disc, add more potato starch & mix well. Repeat until you've used up all the dough.
Heat Oil. Heat oil in a frying pan. Add mochi, spacing them out equally. Depending on your pan size, you might need to fry them in several batches.
1 tablespoon oil
Fry the mochi. Fry mochi on each side until golden brown and crispy.