Our roasted cabbage wedges have a beautiful char on the outside while the insides get slightly tender.
Preheat oven to 450°F.
Place cabbage on a rimmed baking sheet and brush cut sides with oil. Sprinkle with ¼ teaspoon each salt and pepper. Roast, flipping once halfway through, until crispy on the outside and tender on the inside, 20 to 25 minutes.
Meanwhile, combine sour cream, horseradish and the remaining ¼ teaspoon each salt and pepper in a small bowl. Serve the cabbage with the horseradish cream.