Boil potatoes in their skin. Boil eggs. Peel potatoes and eggs. In a pyrex baking dish layer the ingredients: start with sliced potatoes on the bottom, sprinkle grated butter on them, salt, sliced boiled eggs, salt, sour cream, sliced sausage -or franks-, repeat one more time. The last layer should be potato. Cover the pie with grated cheese, than lay the bacon slices on the cheese in a diagonally crossed way. Bake the dish in the oven for 45-60 minutes at 400F until bacon is crisp on the top and cheese melted