Where can I find Tri-grain toast in Appenzell?

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

Abtwil SG Altach Altstätten Arbon Au Bischofszell Buchs Degersheim Diepoldsau Feldkirch Flawil Fußach Goldach Gossau Göfis Götzis Heiden Herisau Koblach Laterns Lustenau Mäder Oberriet Rheineck Rorschach Sankt Margrethen Schnifis St. Gallen Sulz Teufen Thal Weiler Widnau Wittenbach Übersaxen

You can also find this in Appenzell:

Cream Products Gelatine Crispbread Cornflakes Antipasti Fund Pepper Dumplings Sesame Roll Mayonnaise And More