Slice the potatoes into rounds about an inch in thickness. Pour the butter, salt, pepper, and thyme potatoes and mix to coat evenly.
Place all of the potatoes cut side down in a single layer on a sheet pan and place in the oven.
Roast the potatoes for 20 minutes the remove from the oven flip them over and roast for another 15 minutes.
Reduce the heat to 400°F, 200°C or gas make 6.
Remove potatoes from oven and flip them over again. Pour the broth over the potatoes and sprinkle the parsley and garlic on the potatoes. Bake for another 15 minutes or until potatoes are tender.
Remove from the oven and transfer to a platter or serving bowl. Pour over any remaining liquid and top with additional herbs if desired.