Peel the potatoes and boil them in water for at least 15 minutes until soft.

Drain the boiled potatoes and let them cool slightly before mashing them with a fork.

Add a pinch of salt, 2/3 cup potato starch, and 50ml milk to the mashed potatoes and mix well.

Knead the mixture by hand until it reaches a soft dough-like consistency.

Take a small portion of the dough, flatten it, and place mozzarella cheese in the center. Wrap the dough around the cheese and shape into a round, flat disc.

Prepare the soy sauce glaze by mixing soy sauce, oligosaccharide, and water in a 1:1:1 ratio.

Heat a pan with oil and cook the potato pancakes on medium-low heat until golden brown on both sides.

Pour the prepared soy sauce glaze over the pancakes and simmer on low heat until the sauce is absorbed.