Where can I find Rusk in Laterns?

Rusk can also be found in these cities:

Altach Altstätten Andelsbuch Au Bizau Bludenz Brand bei Bludenz Buchs Damüls Diepoldsau Dornbirn Egg Feldkirch Göfis Götzis Heiden Hohenems Innerbraz Koblach Lustenau Mellau Mäder Nenzing Nüziders Oberriet Schlins Schnepfau Schnifis Schwarzenberg Silbertal Sulz Thüringen Vandans Weiler Widnau Übersaxen

You can also find this in Laterns:

Cake Glaze Peanut Butter Ice Cream Desserts Meat Products Instant Coffee Poppy Seed Roll Canned Fruit Olive Oil Champagne Aperitif