Where can I find Poppy seed roll in Herzogenbuchsee?

Poppy seed roll can also be found in these cities:

Balsthal Biberist Burgdorf Derendingen Egerkingen Gerlafingen Huttwil Kirchberg Langendorf Langenthal Murgenthal Münchenbuchsee Oensingen Oftringen Olten Reiden Rothrist Solothurn Utzenstorf Zell Zofingen Zuchwil

You can also find this in Herzogenbuchsee:

Desserts Dessert Baking Mixes Cake Glaze Peanut Butter Ice Cream Rice Dishes Vegetable Juices Instant Iced Coffee Cheese Roll Canned Fish