1. Wash the purple potatoes and steam them in a steamer.
2. Peel while hot. Add sugar and use a spoon to thicken the puree.
3. Add milk to make the stickiness you like.
4. Add an appropriate amount of glutinous rice flour and gently knead into a dough.
5. Divide the dough into several small doughs and knead them into small balls.
6. Dip the potato balls evenly with white sesame seeds.
7. The other part of the potato balls is evenly covered with black sesame seeds.
8. Pour oil into the pot, heat for 7 minutes, and add potato balls.
9. Fry until the potato balls are golden.
Tips:If the potatoes are very large, it is best to cut them into slices when steaming, which can shorten the steaming time.
