Cook potatoes, cut into large cubes and put in greased with butter tray. Add chopped cheese, stirred well with a little water and the remaining butter baked in a preheated 150 C oven for 15 minutes. Then removed, sprinkle with chopped dill and put in the oven for another 5 minutes. Again removed, sprinkle with grated cheese and baked again until the cheese catch golden crust. Serve warm.