Prepare the Cheese: Cut the mozzarella into bite-sized cubes.
Coat with Cornstarch: Roll each cheese cube in cornstarch to ensure an even coating.
Dip in Egg: Beat the egg in a bowl, then dip the cornstarch-coated mozzarella cubes into the egg mixture.
Fry Until Golden: Heat oil in a deep pan over medium heat. Fry the mozzarella nuggets in small batches until they are golden brown and crispy.
Drain & Serve: Remove from the oil and place on paper towels to absorb excess oil. Serve hot with your favorite dipping sauce, such as marinara, ketchup, or garlic aioli.