Preheat oven to 375°F (190°C) and grease a muffin tin.
Slice potatoes thinly using a mandoline or sharp knife.
In a bowl, mix melted butter, garlic, thyme, rosemary, salt, and pepper. Toss potato slices in the butter mixture until well coated.
Stack the potato slices into the muffin tin, filling each cup almost to the top.
(Optional) Sprinkle Parmesan cheese on top for added flavor.
Bake for 45-50 minutes, or until edges are golden and crispy.
Let cool slightly before removing from the muffin tin. Serve warm and enjoy!
