This simple dressing is perfectly balanced thanks to zip from lemon juice and mustard, umami from Parmesan cheese and fresh flair from chives. Break out the good olive oil for the most flavor.
Whisk lemon juice, shallot, Parmesan, chives, mustard, salt and pepper in a medium bowl. Slowly whisk in oil.
Refrigerate for up to 4 days. Bring to room temperature before serving.