The amount of potatoes depends on the size of the pan in which you will bake. The potatoes are peeled, washed nice and are divided into two. Place in pan. Sprinkle with spices. Can put salt, but if the feta cheese is savory is not recommended. Put a little water as lightly cover the bottom of the pan. Top put the butter and bake at 250 C, while soften. Then removed, sprinkle with plenty of grated feta cheese and cheese. Again put in the oven until the cheese crusted.