01 - Set the oven temperature to 250°F (120°C).
02 - Place peeled garlic cloves into a small ovenproof saucepan or baking dish.
03 - Pour olive oil over the garlic until fully submerged. Add thyme, bay leaf, and peppercorns if desired.
04 - Seal the dish tightly with foil or a fitting lid to retain moisture.
05 - Bake for 45 minutes until garlic is tender, golden, and aromatic.
06 - Remove from oven and allow to cool to room temperature, then transfer garlic and oil to an airtight jar and refrigerate.