Where can I find Tri-grain toast in Diespeck?

Tri-grain toast can also be found in these cities:

Bad Windsheim Cadolzburg Emskirchen Herzogenaurach Höchstadt Langenzenn Markt Bibart Markt Erlbach Neustadt an der Aisch Obernzenn Schlüsselfeld Veitsbronn Weisendorf Wilhermsdorf

You can also find this in Diespeck:

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