This fragrant oil adds herby flavor to crab and lobster cakes, basil mashed potatoes and other grilled dishes, or for superior vinaigrettes and aiolis. Store it in an airtight container, where it will last for about 1 week. it will darken in time but the flavor remains excellent. Shake it before using. From Mainstreet Ventures: Distinctive Recipes from Distinctive Eateries" which is a compilation of recipes from popular Ann Arbor restaurants.