Olive oil—which gives a nice, smooth buttery flavor. Lemon juice—will be the acid that adds bright summery vibes and flavor. Lemon zest—promotes that lemony flavor that gives it the perfect pow! Parmesan cheese—freshly grated, add a deep flavor and additional saltiness. Garlic—more flavor! Maple syrup—will help to cut the sharpness of the lemon juice and provide a well-balanced dressing. And salt and pepper.