Preheat oven to 350F.

Slice potatoes and place in an oval or oblong baker or casserole dish.

Stir salt into the hot water and pour over potatoes.

Cover pan with foil and bake for 70-80 minutes or until potatoes are tender.

Lift the potatoes from the pan with a pancake turner so as not to break them up.

Drain off the cooking water.

Slide the potatoes from a plate back into the pan and set aside.

Heat butter in a saucepan and add onion, cooking until it is soft and caramelized.

Stir in the cream cheese, chives, marjoram, salt and pepper (to taste) and one cup milk, stirring until the cheese melts and creates a sauce.

Pour sauce over potatoes and sprinkle with the Parmesan cheese.

Bake, uncovered for twenty minutes or until the cheese melts and is light brown. You can place it under the broiler for a darker color if you like.