Preheat the oven to 250°F.: You should feel a sense of calm against the heat when the oven reaches temperature, because the low, steady warmth is the secret to melting away sharpness. At this temperature the oil will barely shimmer, never bubble aggressively, producing a gentle, steady scent rather than an acrid, roasted smell. If your oven runs hot, the cloves can brown too quickly, so use an oven thermometer to verify accuracy and avoid a bitter edge.
In a small baking dish, combine the peeled garlic cloves, oil, and fresh herbs.: As you nestle the peeled garlic into the oil, notice how the cloves sit like tiny pearls, each glossy and cushioned. The oil should cover most cloves but need not be a rigid bath, and the herbs will release subtle fragrances as they mingle. Pressing the sprigs gently against the cloves helps them infuse, but avoid crushing the cloves which can create uneven cooking. A common error is using too little oil, causing some cloves to dry out during the long cook.
Bake until the garlic is tender, stirring from time to time. This will take about 1 1/2 to 2 hours. The garlic should be soft and golden.: During the first hour you will catch hints of toasted nuttiness rising from the oven. Stirring occasionally ensures even poaching and distributes the herb oils. Look for cloves that have softened, no longer resisting the touch, and taking on a pale golden hue. If they darken too fast, reduce the oven temperature slightly; overly dark cloves indicate the oil was too hot, and the flavor may lean toward bitter instead of sweet.
Remove from the stove and let it fully cool on a wire rack.: By the final stretch, the kitchen will smell faintly sweet and savory, a hint of caramel under the herby backdrop. The cloves should be easily mashed between your fingers and show a uniform, translucent softness. You will hear almost nothing from the dish as it cooks, aside from the quiet settling of oil, which is normal. Resist the urge to increase heat to rush the process because a quick finish sacrifices that supple texture and nuanced taste.
Store the confit in a clean jar in the fridge for up to 2 weeks.: Cooling lets the flavors relax and the oil settle, making it safer to transfer to jars. As the dish cools you will notice the aroma mellow further, and the oil thins slightly as it returns to room temperature. If you jar while still warm you risk condensation, which can shorten storage life, so be patient. Avoid placing a hot dish directly into cold storage as sudden temperature change may warp containers.
Use the garlic as a spread and the garlic oil as a dip.: The finished jar should show cloves submerged partly in a fragrant oil, the herbs sitting like little sentinels on top. Keep it sealed and chilled, and always use a clean spoon to avoid introducing contaminants. For best flavor, let the jar come to room temperature briefly before using so the oil loosens and the cloves reclaim silkiness. A common mistake is double dipping with used utensils which can shorten shelf life, so always use fresh tools.
Use the garlic as a spread and the garlic oil as a dip.: When you taste your first spread, expect a soft, savory burst with muted garlic warmth and a silky mouthfeel, while the oil offers an herbal, fruity finish. I like to press a clove directly onto warm bread or fold several into mashed potatoes , and the oil makes a simple, elegant dip for crusty slices. If the flavor feels flat, a quick toast of the clove releases more aroma, but avoid high heat because it will remove that delicate, confit character.