INGREDIENTS
3 lb
Yukon gold potatoes (, peeled and cubed)
1/3 cup
heavy cream
4 tbsp
unsalted butter (, softened, plus 2 tablespoons melted for brushing the potatoes)
1/2 cup
plus 2 tablespoons Parmiganno Reggiano (, divided)
1 tsp
kosher salt (, plus additional to taste)
1/2 tsp
freshly ground pepper (, plus additional to taste)
grated nutmeg ((optional))
3
egg yolks