Preheat the Oven: Preheat your oven to 375°F (190°C).
Prepare Potatoes: Peel and slice the potatoes into thin rounds. In greased baking dish arrange the slices evenly.
Create the Sauce: In a mixing bowl, combine melted butter, sour cream, garlic powder, onion powder, salt, and pepper. Mix well until all ingredients are incorporated.
Layering: Pour half of the sauce over the arranged potato slices. Layer on half of the shredded cheddar cheese. Repeat the process with another layer of potatoes, sauce, and cheese.
Bake: Cover the baking dish with aluminum foil and bake in the preheated oven for 45 minutes. Then, remove the foil and bake for an additional 15 minutes or until the potatoes are tender, and the top is golden brown.
Garnish and Serve: Once done, remove from the oven, and let it cool for a few minutes. Garnish with chopped fresh parsley. Serve the Potato Turbate warm.