Where can I find Toast bun in Büron?

Toast bun can also be found in these cities:

Aarau Bremgarten Buchrain Buchs Ebikon Egolzwil Emmen Fahrwangen Gränichen Hitzkirch Huttwil Lenzburg Lostorf Lucerne Malters Menziken Muri Oberkirch Oftringen Olten Rain Reiden Reinach Rothrist Ruswil Schöftland Schönenwerd Sempach Seon Suhr Sursee Unterentfelden Urswil Wohlen Wolhusen Zell Zofingen

You can also find this in Büron:

Pasta Sauces Waffles Soups Tea Loose Wine AA (Mignon) Batteries Everything From Milk Baking Mixtures Cream Stiffener Spreads Savory