Český modrý mák is a variety of Papaver Somniferum, or blue poppy, grown in the Czech Republic (one of the world’s largest producers of poppy seeds). Due to its strong, complex, floral flavor, dark blue mák has always had a very important role in Czech national cuisine. Český modrý mák makes a delicious filling for pancakes, cakes, yeast-dough pastries called kolače and strudels - it is even sprinkled over noodles, potato dumplings (both plain and fruit-filled), or combined with blueberries and spread over a shortbread crust, as in a delicious Czech pastry known as borůvkový kolač.