Where can I find Rye roll in Treiten?

Rye roll can also be found in these cities:

Avenches Belmont-Broye Bern Biel Bienne Brugg Cernier Courtepin Düdingen Hinterkappelen Ipsach Kerzers Köniz Le Landeron Lyss Murten Neuchâtel Neuenstadt Nidau Saint-Imier Wünnewil-Flamatt

You can also find this in Treiten:

Edible Curd Grated Lemon Peel Flaxseed Bread Fruit Bar Pickled Vegetables Fresh Salt Schupfnudeln Whole Grain Rolls Mayonnaise