An amazingly delicious wood fire-roasted cabbage at Firedoor restaurant in Sydney, Australia, inspired us to do something similar, albeit in a conventional oven, and transform a humble vegetable into something special. We rub wedges of cabbage with butter and sprinkle them with a fragrant combination of hazelnuts, citrus zest, garlic and coriander. As they roast, the exterior leaves become deeply browned and crispy, while the interior remains silky, sweet and tender. A bright, citrusy dressing completes the dish. Be sure to use savoy cabbage rather than regular green cabbage; the frilly leaves cook up with better texture and flavor. Serve this as an accompaniment to roasted meats, or serve with creamy beans and sausage for a weeknight meal.