Roasted onions are a delicious and versatile dish that can be prepared easily at home using medium-sized unpeeled onions. To make roasted onions, first, adjust the oven rack to the lowest position and preheat the oven to 425 degrees. Cut the onions in half, toss them with oil, salt, and pepper, and place them cut-side down on a lipped cookie sheet.
Roast the onions in the oven until they are tender and the cut surfaces are golden brown, which should take about 25 to 30 minutes. Adjust the seasonings to taste, and drizzle with balsamic vinegar if desired. Roasted onions can be served as a one-dish meal, a first course, a salad, or a side dish. Roasting onions can also bring out their natural sweetness, making even the sharpest onions taste delicious.
