What would pesto be without basil, or salsa sans cilantro? Whether used by the pinch or by the bunch, fresh herbs pull a recipe together by infusing the dish with unparalleled aromas and flavors. For example, basil's faint licorice flavor brightens lemon sorbet, while rosemary's piney zing complements chicken-zucchini skewers. Sometimes, when the effect you seek is subtle, refined, and delicate, a hint of herbs is enough; other times, handfuls are required.