Where can I find Rusk in Lauerz?

Rusk can also be found in these cities:

Altdorf Baar Buchrain Buochs Cham Ebikon Einsiedeln Goldau Ibach SZ Ingenbohl Küssnacht Lucerne Rotkreuz ZG Stans Steinhausen Unterägeri Zug

You can also find this in Lauerz:

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