1.
Preheat the oven to 482 ºF.
4.
Wash the potatoes and slice them in half lengthwise. Set them in the baking dish and sprinkle them with the oil and vinegar. Add the herbs and salt and pepper.
5.
Roast the potatoes for about 40 minutes, turning them occasionally so they don’t burn.
6.
Lower the oven temperature to 428ºF, pour in the vegetable broth and bake for about 15 minutes more, until the broth has almost completely evaporated.