Wash the potatoes and wrap them in aluminium foil. Bake in the preheated oven (electric cooker: 200 °C/ gas: level 3) for about 1 hour. In the meantime cut ham into small cubes and cucumbers into slices. Clean and wash the radishes, also cut them into very thin slices. Wash parsley and chop finely, except for a little bit for garnishing. Whisk eggs. Season with salt, pepper and nutmeg.
Heat the fat. Add whisked egg, ham and cucumber and let it set. Push the mixture together with a spatula. Take potatoes out of the oven and wrap them in foil. Spread the scrambled eggs on the potatoes in portions. Serve sprinkled with radishes and parsley and garnished