- Preheat oven to 400°F.
- Do not peel the onions.
- Rub the outer skins well with the olive oil.
- Set them in an oiled baking pan, sprinkle with salt and pepper and bake for about 1 hour until soft and golden.
- Serve warm or at room temperature.
- Use either as a side dish or as part of an antipasto or toss with fresh herbs such as oregano and serve as part of a salad.