Across Europe, buns and soft white bread pastries are often sprinkled on top with black and white poppy seeds (for example cozonac, kalach, kolache and kołacz). The seeds of the czech blue poppy (food safety cultivars Papaver somniferum) are widely consumed in many parts of Central and Eastern Europe. The sugared, milled mature seeds are eaten with pasta, or they are boiled with milk and used as filling or topping on various kinds of sweet pastry.