For scalloped chops, wash and boil the potatoes. Melt the butter in a saucepan and sauté the parsley.
Pour in the cream and remove from the heat. Meanwhile, salt and pepper the chops and sear on both sides. Remove from the pan and place in a baking dish.
Peel the cooked potatoes and press them through a potato ricer while they are still hot. Heat the cream mixture again and mix it together with the yolk into the mashed potatoes.
Spread on the finished chops and bake in the oven at 220 degrees for 10 minutes. In the meantime, cook the pasta and reheat the gravy and stir in about 1 tablespoon of mustard.
Pour on the cream and add salt and pepper to taste.