Cut the potatoes into cubes and boil them starting from cold water for about 15 minutes, until they soften without falling apart.
Season them with oil, salt, pepper, Parmesan and breadcrumbs, mixing with a spatula.
Line a baking pan with the puff pastry and prick it with a fork.
Add the ham, cheese and potatoes.
Add a drizzle of oil on top and a generous sprinkling of Parmesan.
Seal the edges of the puff pastry and brush them with the egg yolk.
Bake at 180°C for 20-25 minutes.
Cake pan
Fork
You can use the sliced meat and cheese you prefer.
Italia, Emilia Romagna
