Cook the Potatoes: Bring a large pot of salted water to a boil. Add potato chunks and cook for 15-20 minutes until fork-tender. Drain, mash until smooth.

Mix Ingredients: Combine mashed potatoes, sugar, and cornstarch in a bowl. Mix thoroughly until you achieve a cohesive dough-like texture.

Form the Pancakes: Take 90g of the mixture and flatten into a disc. Place mozzarella in the center, fold over, and shape into pancakes.

Fry the Pancakes: Heat cooking oil in a skillet over medium heat. Fry each pancake for 3-4 minutes on each side until golden brown.

Drain and Serve: Transfer pancakes to a paper towel-lined plate to absorb excess oil. Let cool slightly before serving.