Pre-heat oven to 375°F
Brush the bottom of an 8x8" (or equivalent) baking dish with 2 Tbsp of the melted butter.
Using a sharp knife or a mandoline, thinly slice the potatoes.
Arrange the potato slices vertically but at a slight angle in a circular pattern in the dish, filling it completely.
In a small saucepan over low-medium heat, melt the butter.
Add garlic, rosemary, thyme, a pinch of sea salt and a grind of freshly ground black pepper.
Simmer for 1-2 minutes
Drizzled the herbed butter over the potatoes
Roast until the top edges of the potatoes are crispy (about 1 hour)
Let stand for 10 minutes before serving.