Preheat oven at 190*c for 10 minutes.
. Grease muffin pan with butter and Keep aside.
Cut the potatoes into thin slices.
Place potato slices into a large bowl.
Add melted butter, parmesan cheese,thyme, garlic powder, salt and pepper.
Toast to coat evenly.
Layer the potato slices into stacks and place in the prepared muffin pan.
Sprinkle some freshly ground black pepper.
Bake until the edges and tops are golden brown and the centres are tender.
Remove from the oven,let them rest for 5 minutes than carefully remove from the pan.
Serve with homemade sour cream or sauce of your choice.