Poppy seeds (blue) are derived from the same plants as opium but do not have any narcotic properties. They have a subtle sweet, nutty flavour (mild almond) that is accentuated when baked. Blue poppy seeds are generally used in baked recipes e.g. breads, buns, bagels, pretzels, and pastries. White poppy seeds are used in Indian and Middle Eastern dishes to add flavour and as a thickening agent.