Cut off the tops of the garlic heads so that there is room to pour oil in the crevices. Place the garlic heads cut-side up in a small baking dish.
Drizzle the oil into the cut heads of garlic. Sprinkle with freshly ground black pepper.
Cover the dish tightly with aluminum foil. Place the dish in the oven and bake for 45 to 60 minutes. The garlic will be golden and browned in bits and practically jump out of its skin.
Notes
Use the roasted garlic in sauces, soups, dressings, and vegetable dishes. It will have a spreadable texture, making it a delicious addition to sandwiches and toast. Store leftovers in the refrigerator for up to one week or in the freezer up to a month.