After peeling the potatoes, grate them with a grater with wide holes. Place them in a cloth and wring out to let out the vegetation water.
Transfer them to a bowl and add the grated Latteria cheese in julienne.
Adjust salt and oil.
Cook in a non-stick pan until a nice crust forms on both sides.
Spread on each rosti a tablespoon of robiola, a few slices of salmon, season with a drizzle of oil and finish with chopped pistachios and chives.