Boil the potatoes

• Peel the potatoes and cut them into chunks.
• Boil in salted water until fork tender, then drain well.

Make the potato mixture

• Mash the potatoes until smooth.
• Mix in the parmesan, cornstarch, salt and black pepper.

Shape the balls

• Take a portion of potato mixture and flatten it in your hand.
• Place a mozzarella cube in the center and close into a ball.

Coat the balls

• Roll each ball in the beaten eggs.
• Coat generously with breadcrumbs.

Fry until golden

• Heat the oil in a pan over medium heat.
• Fry the balls in batches until golden and crispy, then drain on paper towels.