Tumis Kentang dan Jamur Mentega

Bahan-bahan (2 porsi)

• 3 tablespoons butter
• 8 oz (230g) potatoes (peeled and cut into small cubes)
• 4 oz (125g) white mushroom (or cremini mushroom, stems removed and sliced)
• 1 pinch salt
• some chopped parsley leaves