Knead ingredients sweet potato puree and glutinous rice flour together until smooth and set aside.
Shape the dough from Step 1 into long strips, divide into equal parts, and roll into balls for later use.
Heat a pot and heat the oil to 110°C. Put the meatballs from Step 2 into the pot and fry until they float. Gently stir the oil in the pot. When the surface of the meatballs turns golden brown, remove them and fry them. Drain the oil and serve.