Blue Poppy Seeds are an oilseed grown on the opium poppy plant. The seeds have a bluish-black colour and are kidney-shaped. They are used for their flavour and as a decoration. There are 2 main varieties, white and blue. The white poppy seeds are used more in curries as a thickening agent and are more subtle in flavour. They both have a pleasantly sweet nutty flavour, that complements savoury & sweet cooking.