Where can I find Tri-grain toast in Mittelberg?

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

Andelsbuch Au Bizau Damüls Egg Hittisau Innerbraz Krumbach Lech Oberstdorf Riezlern Schnepfau Schröcken Stuttgart Warth

You can also find this in Mittelberg:

Pudding Three-Grain Bread Cereals Antipasti Fund Dumplings Snacks Horseradish Salad Dressings Hamburger Buns