01 - Set oven temperature to 400°F (200°C).
02 - Remove loose papery layers without separating cloves; leave bulb intact.
03 - Cut approximately 1/4 inch (0.5 cm) off the top to expose the cloves.
04 - Place cut-side up on a piece of aluminum foil.
05 - Drizzle 1 to 2 teaspoons olive oil over the exposed cloves, then season with sea salt and optional black pepper.
06 - Wrap the garlic bulb tightly in foil and position it on a baking sheet.
07 - Bake for 35 to 40 minutes until cloves turn soft, golden, and fragrant.
08 - Let cool slightly, then gently squeeze roasted garlic from each clove. Serve warm or at room temperature.