Stringy potato croquettes: the recipe for perfect and delicious croquettes

Ingredients:
3 large
potatoes 1 egg
4 tablespoons Parmesan
cheese 1/2 teaspoon salt
1 pinch nutmeg
100 g mozzarella
Breading:
1 egg + milk to taste
Breadcrumbs + Parmesan cheese + black pepper

Oil for frying