Prepare steamed sweet potato, egg, and tempura flour. Steam or boil sweet potato slices for about 20 minutes.

Mash the warm sweet potato and mix with 2 tbsp tempura flour and 1 egg.

Adjust the dough consistency with tempura flour until it holds together well.

Shape the dough into small bite-sized balls. Wet your hands slightly to prevent sticking.

Heat a pan with cooking oil and fry the dough balls on medium to low heat.

Cook until golden brown and remove excess oil.