Where can I find Poppy seed roll in Kestenholz?

Poppy seed roll can also be found in these cities:

Balsthal Biberist Breitenbach Bubendorf Derendingen Egerkingen Egolzwil Erlinsbach Gerlafingen Herzogenbuchsee Huttwil Langendorf Langenthal Laufen Lostorf Murgenthal Oensingen Oftringen Olten Reiden Rothrist Schönenwerd Solothurn Utzenstorf Zell Zofingen Zuchwil

You can also find this in Kestenholz:

Milk Baking Ingredients Beer Jam Vinegar Beef Spices Cocoa Normal Rolls Acid Preserves