Where can I find Poppy seed roll in Sonceboz-Sombeval?

Poppy seed roll can also be found in these cities:

Biel Bienne Brugg Delémont Grenchen Ipsach Le Landeron Lyss Moutier Münchenbuchsee Neuenstadt Nidau Saint-Imier Tavannes Tramelan

You can also find this in Sonceboz-Sombeval:

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